动态检车员未按规定的检查范围和质量标准对（）进行检查，造成铁路货车故障未被及时发现，

单词(10分)：

1. A study shows the safe driving speed r __________ from 60km to 80 km per hour.

1. The building o________ the post office is a book store,which is open 24hs every day.

2. I think we have everything in the agreement, shall we s________ it?

3. An awful idea has just s__________ me .

4. The p__________ water is not fit to drink.

5. Well __________ (教育) when she was young,she is respected by everyone in the villiage.

6. From the __________ (位置)on the top of the TV Tower, we can have a better view of the whole city.

7. We need to buy some new __________ (家具).

8. Is there any ______________(可能) you could pick me up at the airport.

9. __________ (有希望)， I will get a pay raise next month.

将两个小灯泡L₁：“6V，12W”和L₂：“6V，6W”串联起来接在电源上，要保证两灯泡的实际电压都不超过各自的额定电压，求电源电压的最大值．

康明斯KTA-19G2柴油机的PT泵内部是利用（）冷却。

A.水

B.空气

C.机油

D.柴油

选用不同溶剂所能提取的成分不同，下列成分能被石油醚提取的是

A．生物碱
B．苷类
C．糖类
D．黄酮类
E．挥发油

同业拆借市场的期限最长不得超过( )。

A．一年
B．半年
C．四个月
D．一个月