题目内容
（请给出正确答案）
Given that sin A=5/13 and 0°≤A＜ 360°, what are all possible values of cos A ？
A.-5/13 only
B.-5/13 and 5/13
C.12/13 only
D.-12/13 only
E.-12/13 and 12/13
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更多“Given that sin A=5/13 and 0°≤A…”相关的问题
第1题
A.– 90°
B.30°
C.– 30°
D.90°
第2题
____________
[A] Although no such evidence was presented, the casino’s marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected.
[B] It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative？
[C] By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit.
[D] Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government.
[E] David Williams’s suit should trouble this gambling nation. But don’t bet on it.
[F] It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will.
[G] The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so？
第3题
______________.
(A). Although no such evidence was presented, the casino's marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected. (B). It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative？ (C). By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit. (D). Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government. (E). David Williams’s suit should trouble this gambling nation. But don’t bet on it. (F). It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will. (G). The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so？
第4题
_________
[A] Although no such evidence was presented, the casino’s marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected.
[B] It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative？
[C] By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit.
[D] Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government.
[E] David Williams’s suit should trouble this gambling nation. But don’t bet on it.
[F] It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will.
[G] The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so？
第5题
______________.
(A). Although no such evidence was presented, the casino's marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected. (B). It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative？ (C). By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit. (D). Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government. (E). David Williams’s suit should trouble this gambling nation. But don’t bet on it. (F). It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will. (G). The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so？
第6题
Homosexuals
Many homosexuals prefer to be called gay or, for women, lesbian．Most of them live quiet lives just__ (1) anyone else．Some gay people have always raised children, __ (2) or with partners, and the use of artificial insemination(人工授精)is increasing among lesbians.
Gay persons are in every kind of job． Some are very open about their homosexuality,and some are more private．Some__ (3) their sexual orientation as a biological given and others as a choice．For those women who see it as a choice, one reason often given is the inequality in most heterosexual(异性恋的)relationships.
Homosexuality has been common in most cultures throughout history and generally (4)．As a result, homosexual activity became a crime, __ (5) which the penalty in early courts was death．Homosexual behavior. is still__ (6) in many countries and the United States.
Homosexuality later came to be viewed widely as less a sin than a sickness, but now no mental-health professional(具有专业资格的人)any longer__ (7) homosexuality an illness．More recent theories to__ (8) for homosexuality have included those ,based on biological and sociological factors．To date, __ (9), there is no conclusive general theory that can explain the cause of homosexuality.
Attitudes__ (10) homosexuality began to change in the second half of the 20th century．Gays attribute this, in part, to their own struggle for their rights and pride in their orientation． Some large companies now __ (11) health-care benefits to the life partners of their gay employees．Many cities also have officially appointed lesbian and gay advisory (咨询的)committees．__ (12) some attitudes have changed, however, prejudice(偏见)
still exists, and in the late 1980s and early 1990s there were considerable shouts against homosexuals, with attempt to __ (13) laws forbidding the granting of basic civil rights to gays.
The AIDS epidemic, which started in the 1980s, has devastated(破坏的)the gay community and brought, it together as never before．The organized gay response to the lack of government financial support for fighting AIDS and to the needs of the thousands of AIDS victim, __ (14) they be gays or not, has been a model of community action．AIDS,however, has also __ (15) people with another reason for their prejudice.
第 51 题 A．alike
B．like
C．likely
D．liking
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