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George Washington was the first man not a king whose birthday was publicly celebrated duri

ng his lifetime. Before the colonies declared their independence, celebrations honoring the birthdays of British rulers were customary. After the Declaration of Independence, the American people ignored royal birthdays and began instead to celebrate General Washington's birthday. This custom started in 1778 during the army's cold snowy winter at Valle Forge, when one of the military bands marched to Washington's headquarters and played for him.

When the war ended in 1783, Washington eagerly returned to Mount Vernon. But his peaceful retirement was interrupted when he was unanimously chosen first president of the United States. He took office in 1789 and was reelected in 1792. In 1796, he refused a third term and retired from political life. He died two years later and was buried at Mount Vernon, which one million tourists visit every year. Shortly after his death, Washington was praised in these famous words: "First in war, first in peace, and first in the heart of his countrymen."

To the American people, Washington symbolizes dignity, statesmanship, and, above all, honesty. The famous cherry tree story, which was invented by Washington's first biographer, has become a lesson in morals for all American schoolchildren. The story goes like this: When George Washington was about six years old, his father gave him a hatchet (small axe), which the little boy loved to play with. One day, he tried the edge of his hatchet on his father's favorite young cherry tree and did enough damage to kill the tree. Next morning, his father noticed the damage and ran into the house shouting, "George, do you know who killed that beautiful little cherry tree.., in the garden? George's famous reply was, "I can't tell a lie, Pa, you know I can't tell a lie. I cut it with my hatchet." His father, pleased with the boy's courage and honesty, quickly forgave him.

Because of this story, traditional dessert on Washington's birthday are cherry pie or a log-shaped cake decorated with cherries. Washington's Birthday is a legal holiday throughout the U.S.A. It is celebrated on the third Monday in February. In some states, this date is called Presidents' Day and honors both Washington and Lincoln.

George Washington's birthday was first celebrated ______.

A.before the War of Independence

B.after he died

C.after he became the President of the United States

D.during the War of Independence

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第1题

RISC芯片的特点之一是()。A.大多数指令在一个机器周期内完成B.有丰富的指令寻址方式C.一条指令

RISC芯片的特点之一是()。

A.大多数指令在一个机器周期内完成

B.有丰富的指令寻址方式

C.一条指令可多次访问存储器以取得操作数

D.指令数量大,种类多

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第2题

RISC芯片的特点之一是()。A.大多数指令在一个机器周期内完成B.有丰富的指令寻址方式C.一条指令

RISC芯片的特点之一是()。

A.大多数指令在一个机器周期内完成

B.有丰富的指令寻址方式

C.一条指令可多次访问存储器以取得操作数

D.指令数量大,种类多

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第3题

下列关于精简指令RISC的描述正确的是()A.支持的寻址方式更多。B.大部分指令在一个机器周期内完成。

下列关于精简指令RISC的描述正确的是()

A.支持的寻址方式更多。

B.大部分指令在一个机器周期内完成。

C.通用寄存器的数量少。

D.指令字长:不固定。

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第4题

● 下面关于RISC指令相对于CISC指令的特点说法不正确的是() 。 ()

A.在CISC指令的基础上优先选取使用频率最高的一些简单指令,以及一些很有用但不复杂的指令,避免复杂指令

B.大多数指令可在一个机器周期内完成

C.较多使用指令数和寻址方式

D.采用硬布线控制

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第5题

下列不是RISC指令系统的特点的是()

A、指令数目较少

B、指令长度固定

C、大多数指令可以在一个机器周期内完成

D、便于表达高级程序设计语言的语义

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第6题

下面的哪个不是RISC技术的特点?()A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式B.采

下面的哪个不是RISC技术的特点?()

A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式

B.采用单周期指令,大部分指令只用一个机器周期即可完成

C.硬线控制逻辑

D.芯片生产成本提高而成品率降低

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第7题

下面的哪个不是RISC技术的特点?(56)。A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式B.

下面的哪个不是RISC技术的特点?(56)。

A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式

B.采用单周期指令,大部分指令只用一个机器周期即可完成

C.硬线控制逻辑

D.芯片生产成本提高而成品率降低

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第8题

下列关于RISC的叙述中,错误的是()。A.RISC普遍采用微程序控制器B.RISC大多数指令在一个时钟周期内

下列关于RISC的叙述中,错误的是()。

A.RISC普遍采用微程序控制器

B.RISC大多数指令在一个时钟周期内完成

C.RISC的内部通用寄存器数量相对CISC多

D.RISC的指令数、寻址方式和指令格式种类相对CISC少

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第9题

下面的选项不是RISC技术的特点的是A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式B.采

下面的选项不是RISC技术的特点的是

A.简化指令格式,尽量使指令具有相同的长度,并简化寻址方式

B.采用单周期指令,大部分指令只用一个机器周期即可完成

C.硬线控制逻辑

D.芯片生产成本提高而成品率降低

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