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【单选题】
配置肠外营养液及普通静脉药物的净化工作台的规格是A.
垂直层流，相对负压
B.
水平层流，相对负压
C.
垂直层流，相对正压
D.
水平层流，相对正压
E.
以上均可
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皮皮学刷刷变学霸
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【单选题】-----Who ______ it be that hasn’t handed it in yesterday? ------It _______ be Bob. He handed it in yesterday.
A.
can; mustn’t
B.
must; can
C.
can; can’t
D.
may; mustn’t
【单选题】---Who can it be that hasn’t handed in his composition? ---It ______ be Robinson. He ______ it in yesterday.
A.
will; should hand
B.
must; should have handed
C.
may; can’t hand
D.
can; could have handed
【单选题】It is always true that sometimes even if you have had a big dinner, _________ are that you will still want to reach for food when it gets late．
A.
problems
B.
facts
C.
chances
D.
cases
【简答题】If you have had even limited contact with people from other cultures, you know that they differ in both ( ) and ( ) ways.
【单选题】Even if you had refused, the ______ would probably not have been very different.
A.
effect
B.
consequence
C.
result
D.
outcome
【简答题】Let’s say you have had a sore throat for several weeks . You have done everything you can to relieve (减轻）the pain: medicine, Vitamin C, and even chicken soup. All these things help your throat feel be...
【单选题】Even if you have had a big dinner, ___ are that you will still want to reach for food when it gets late．
A.
problems
B.
facts
C.
chances
D.
cases
【单选题】Those who _____ in ____ compositions, please hand them in this afternoon.
A.
hasn't handed; his
B.
haven't handed; their
C.
has handed; their
D.
have handed; his
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