Because of the need for complete secrecy and the lack of any direct communication faciliti
第1题
Japanese people continue to work after retirement because they need the income.
A.Y
B.N
C.NG
第2题
A.comprehensive
B.alternative
C.deliberate
D.ambiguous
第3题
A、and
B、or
C、because
D、as long as
第4题
第5题
We need a microscope to see germs because germs ______.
A.move quickly
B.are very dirty
C.are very small
第6题
A.cheap
B.inexpensive
C.expensive
D.economical
第7题
A.transaction
B.transmissions
C.transitions
D.transformation
第8题
第9题
We need to know something about the structure and operation of science because ______.
A.it is not easy to understand the things that excite and frustrate science
B.science affects almost every aspect of our life
C.scientists live in a specific substructure
D.it is easier to understand general characteristics of science
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