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【单选题】
在管道的粘性总流中,按截面平均流速计算的动能比实际动能在数值上( )。A.
要大一些 ;
B.
要小一些;
C.
完全相等;
D.
可能大,也可能小。
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皮皮学刷刷变学霸
举一反三
【单选题】If a team leader expects his team members to trust him, what should he do?
A.
He can organize some team activities.
B.
He should give more praises to his team members.
C.
He should respect his team members first.
D.
He should encourage open communication between team members.
【单选题】In order to ensure the success of the expedition, the team leader thought it necessary to ______ the most of the opportunities at hand.
A.
grasp
B.
catch
C.
make
D.
obtain
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