如图所示三个规格相同的杯子里分别装有水、盐水和煤油．它们对容器底部的压强相同，根

根据句意和首字母提示填空，完成下列句子。

1. He thought about going to Shanghai and Qingdao, but d ______ on Tibet.

2. He plans to have a very r______ vacation.

3. Zhuxun says, "I just finished m______ my last movie."

4. Many t______ come to the Great Wall every year.

5. Your jeans are dirty. Go and wash them c______.

6. I hope you are in good h______.

7. There are h______ of students in our school.

8. From the hill we can see the whole town b______.

9. My s______ habits are pretty good, I try to read, write and listen carefully.

10. He always helps his parents b______ his brother .

离心泵密封环的作用是为了减少高压区向低压区流动所造成的（）。

A、水力损失

B、机械损失

C、容积损失

D、压头损失

空气在一般情况下温度远远高于它的（），是属于（）。

碱集料反应试验中恒温养护箱或养护室温度应保持在（）℃，相对湿度为（）以上。

A、40±1℃；90%

B、40±2℃；95%

C、40±2℃；98%

D、40±1℃；95%

提高电缆载流量应从哪些方面考虑，以下正确的是（）。

A.提高电缆绝缘工作温度，采用高温绝缘材料。

B.增大线芯截面，线芯采用高导电材料。

C.提高绝缘材料厚度。

D.减少电容电流。

E.采用低介损材料，降低损耗。