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【单选题】
理想气体从同一始态(p 1 ，V 1 ，T 1 )出发，分别经恒温可逆压缩(T)、绝热可逆压缩(r)到终态体积为V 2 时，环境对体系所做功的绝对值( )。A.
W T ＞W r
B.
W T ＜W r
C.
W T =W r
D.
无确定关系
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【多选题】关于注意与智力发展关系的描述正确是( )
A.
注意能使儿童感知到的信息进入长进记忆系统
B.
注意能加强儿童观察的有意性、细致性和理解性
C.
儿童集中注意时,学习效果好,能力提高也快
D.
集中注意会使儿童的注意范围变窄,从而影响思维活动
E.
注意力容易分散的人智商也不会太高
【简答题】What is the emission designation for VHF-FM?A. F3C. B. J2B. C. F3E. D. AME.
【简答题】图示刚架,单元编号、结点编号和结点位移编号如图所示,则单元 3的单元定位向量为 _________ 。提示:写成 [ , , , , ,]T的形式
【单选题】What is being announced?
A.
) The train service to Ottawa is canceled.
B.
) A departure time has been changed.
C.
) Ticket prices have increased.
D.
) The train station is now closed.
【简答题】What is the English for the Chinese in the sentence? Please use a phrase in Text I of Unit 7. We have to read "字里行间” real estate purchasing contract in case of many traps in it.
【单选题】What kind of businesses are regarded as“small”in the UK?
A.
Those with fewer than 50 employees.
B.
Those with only two or three owners.
C.
Those with a loan of 99.3％in their capital.
D.
Those with an output value less than ￡4 million.
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