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【单选题】
在同一反应体系中加入多对引物，同时扩增一份样品中不同DNA片段的扩增技术是A.
逆转录PCR
B.
多重PCR
C.
PCR
D.
PCR
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【单选题】We are ________ faced with the necessity to recognize that having more people implies a lower standard of living.
A.
readily
B.
smoothly
C.
inevitably
D.
deliberately
【单选题】______we get support from the trade unions, we should win the election.
A.
If
B.
Unless
C.
As long as
D.
Supposing
【单选题】______ we need air and water, so we need criticism and self-criticism.
A.
Even though
B.
So long as
C.
Just as
D.
Now that
【单选题】Dictionaries are important to US students. When We meet a new word, We can _______ in them. [ ]
A.
look it up
B.
look up it
C.
look for it
D.
look them up
【单选题】—Where did you go on holiday this summer? England? —You are __________ . We went on a lO-day tour to Paris. [ ]
A.
funny
B.
right
C.
cool
D.
close
【简答题】Many of us mistakenly believe that it’s wrong to think we have any good qualities. We may spend a lot of time blaming ourselves for our negative qualities, thinking that self criticism is the key to i...
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