He is at ______ in his description of country life.A.betterB.bestC.his betterD.his best
He is at ______ in his description of country life.
A.better
B.best
C.his better
D.his best
He is at ______ in his description of country life.
A.better
B.best
C.his better
D.his best
A.V=9.92m3/h,He=41m
B.V=8.14m3/h,He=41m
C.V=8.14m3/h,H=41.3m
D.V=9.92m3/h,H=41.3m
______ at Harvard, he began to write his essay.
A.Busy was as he
B.Busy as was he
C.Busy as he was
D.As was he busy
How can he _____________ if he is not _____________?
A: hear; listening
B; be listening; heard
C; listen; hearing
【单选题】若He=36-0.02V(单位He--m ,V-- m/h),则式中36的单位是_________ ,0.02单位是_____________。
A、m,m/(m/h)
B、m,m/(m/h)
C、m,m/(m/h)
D、m,1/(m/h)
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