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【判断题】
在抽样调查中，系统性误差是由人为的原因造成的，因此应当尽量克服。( )A.
正确
B.
错误
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【简答题】我国的国内航空货运单有 ( ) 联,包括 ( ) 联正本、 ( ) 联副本。
【单选题】Dr. Jones ordered ______ for the laboratory.
A.
two pieces of equipments
B.
two equipments
C.
two pieces of equipment
D.
two piece equipments
【单选题】About______of these rooms______empty.
A.
two third, are
B.
two thirds, are
C.
two thirds, is
D.
two third, is
【单选题】The_____ should be taken good care of. They are too young. [ ]
A.
two-year-old
B.
two -year-olds
C.
two -years-old
D.
two -year-old child
【单选题】______ number of the students in their school is about two thousand, ______ of them are boys.
A.
A; two thirds
B.
The; two third
C.
The; two thirds
D.
A; two third
【单选题】---We all wonder ____ the relationship between France and China is good again now? ---Because the two countries have common national benefits.
A.
why it is that
B.
why it is
C.
that it is why
D.
it is why
【简答题】数码摄影系统是由（）、（）、（）三大部分组成的。
【单选题】Look! There are______grazing over there.
A.
two catties
B.
two head of catties
C.
two cattle
D.
two heads of cattle
【单选题】—Something to drink? —Yes, ________.
A.
two glass of milk
B.
two glass of milks
C.
two glasses of milks
D.
two glasses of milk
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