不可修复废品是指技术上不能修复,或者支付修复费用在经济上不合算的废品。()
不可修复废品是指技术上不能修复,或者支付修复费用在经济上不合算的废品。( )
不可修复废品是指技术上不能修复,或者支付修复费用在经济上不合算的废品。( )
第1题
The reason that scientists cannot cure a common cold is_____.
A.we don't know how we get cold
B.we aren't sure the exact kind of cold viruses
C.we don't know when we will catch cold
D.we aren't sure the exact scientific method
第2题
Sometimes a researcher cannot get valid results because ______.
A.the information needed is too complex to be gathered
B.personal interviewing is the most accurate of all survey research techniques
C.personal interviewing is not as effective as other research techniques
D.both interviewer and interviewee may make mistakes during the interviewing
第3题
A.meditation
B.mediate
C.mediator
D.rebellion
第4题
Sometimes a researcher cannot get valid results because ______.
A.the information needed is too complex to be gathered
B.personal interviewing is the most accurate of all survey research techniques
C.personal interviewing is not as effective as other research techniques
D.both interviewer and interviewee may make mistakes during the interviewing
第5题
第6题
What do experts think of financial education?
A.It cannot always solve a financial problem for everybody quickly.
B.It can help you to get to know the financial rules.
C.It cannot help you to save more and make higher returns.
D.It can exert great effect on everybody's financial plan.
第7题
Just as a married man cannot leave his work, a poor man cannot ______ to get sick.
A.have
B.go
C.expect
D.afford
第8题
Little ______ the details of this case, so I cannot tell you more.
A.I ever know
B.of I know
C.I knew
D.do I know
第9题
B.Because for some learners,the training cost is too expensive.
C.Because the training time is too long.
D.Because leamers cannot get payment during the training period.
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