Chinas trade surplus with the US accounted for 73 percent of its total surplus last year,
A. increase
B. deficit
C. decrease
D. surplus
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To succeed in todays global market place, it is______to learn as much as possible about the conditions in overseas markets.
A. essential
B. interesting
C. suitable
D. negligent
γ辐照装置的装源量比较大,活度范围为()Bq量级。
A. 1010-1014
B. 1012-1016
C. 1014-1015
D. 1016-1020
Where is the boundary between human mind and machine? If the test were reasoning ability,
【C10】
A. either
B. each
C. both
D. every