A.sensors
B.filters
C.injectors
D.pipes
第1题
A.at hand
B.in turn
C.in conclusion
D.at length
第2题
A.at hand
B.in turn
C.in conclusion
D.at length
第3题
A.in conclusion
B.at hand
C.at length
D.in turn
第4题
A.in conclusion
B.at hand
C.at length
D.in turn
第5题
Glass-fiber cables can carry hundreds of telephone conversations ______ .
A.at length
B.at the moment
C.at the same time
D.at intervals
第6题
A. in detail
B. at length
C. in all
D. in brief
第7题
A.in conclusion
B.at hand
C.at length
D.in turn
第8题
A.at hand
B.in turn
C.in conclusion
D.at length
第9题
A.ML/T
B.ML^2/T^2
C.MLT
D.ML/T^2
E.None of the others
第10题
A.at hand
B.in turn
C.in conclusion
D.at length
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