搜题请搜索小程序“爱下问搜题”
问题 单项选择题

建筑材料的基本物理参数除了密度、表观密度、堆积密度以外，还包括()。

A．孔隙率、空隙率、吸水率、脱水率

B．孔隙率、空隙率、吸水率、含水率

C．孔隙率、空隙率、脱水率、含水率

D．孔隙率、吸水率、含水率、脱水率

答案

参考答案：B

解析：建筑材料的基本物理参数有密度、表观密度、堆积密度、孔隙率、空隙率、吸水率、含水率。

填空题

根据语境，用恰当的语言完成对话。

A: Hi, Grace!

B: Hi, Eric! I heard you visited Mount Tai during holiday.

A: Yes, I went there with my parents.

B: How did you go there?

A: By train.

B: 小题1:                       ?

A: For two days.

B: 小题2:                   ?

A: It’s very beautiful and there are many places of interest.

B: Did you climb up to the top or take a cable car(缆车)?

A: 小题3:                       . I was quite out of breath(上气不接下气) but felt very excited.

B: Where did you stay for the night?

A: In a hotel on the top. We got up early so that 小题4:                .

B: Did you see it?

A: Yeah. We saw it rising slowly from the sea of the clouds. It was terrific.

B: That sounds great. Did you enjoy yourself?

A: Certainly. I had many unforgettable experiences. I’ll 小题5:             later, and I’ll also put some photos in it.

B: OK. I’ll read your blog (博客) and share your wonderful experiences.
查看答案
填空题

有amL3种气态烃的混合物，与足量O2点燃爆炸后，恢复到原来状况（常温、常压）体积缩小 2amL，则3种烃不可能是（　　）

A．CH4、C2H4、C3H4

B．C2H6、C3H6、C4H6

C．C2H2、C2H6、C3H8

D．CH4、C2H6、C2H2
查看答案