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问题 选择题

在容积一定的密闭容器中发生可逆反应A(g)+2B(g) 2C(g)；△H>0，平衡移动关系如下图所示。下列说法正确的是

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A.p1<P2，纵坐标指A的质量分数

B.p1>P2，纵坐标指C的质量分数

C.p1<P2，纵坐标指A的转化率

D.p1<P2，纵坐标指混合气体的平均摩尔质量

答案

答案：B

完形填空

根据对话情景选择恰当的选项，其中有两项是多余的。

A: Hi, Zhou Jun, where did you go last week?

B: 小题1: 

A: Where is Hangzhou?

B: It’s in Zhejiang, the south of China.

A:小题2: 

B: It’s famous for Leifeng Pagoda, Bainiangzi, Linyin Temple and especially West Lake.

A: Do many people go there to enjoy their holidays every year?

B: 小题3: 

A: How long did you stay there?

B: 小题4: 

A: Did you take a lot of photos?

B: Certainly. We also had some delicious food. 小题5: 

A: What an exciting trip! I’ll go there one day.

A．And we had a very wonderful time.

B．Yes, they do.

C．I went to Hangzhou with my friends.

D．In two days.E. What is it famous for?

F. For two days.

G. Yes, they will.
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单项选择题

施工安全检查中的查整改的主要内容是（）。

A.检查企业领导和员工对安全生产方针的认识程度

B.主要检查安全生产管理是否有效

C.主要检查对过去提出的安全问题和发生的生产事故及安全隐患是否采取了安全技术措施

D.检查对伤亡事故是否及时报告，对责任人是否已经做出严肃处理
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