问题
单项选择题
大型机组在开车前，润滑油泵需要做下面（）联锁试验。
A、润滑油泵自启
B、润滑油泵自停
C、润滑油出口流量低
D、润滑油泵出口油温高
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
大型机组在开车前，润滑油泵需要做下面（）联锁试验。
A、润滑油泵自启
B、润滑油泵自停
C、润滑油出口流量低
D、润滑油泵出口油温高
参考答案：A
| 综合填空。(选择方框内单词的适当形式填空，每空只填一个单词。) | |
In the morning I 2______ get up early and read in the forest behind my house. The air is 3______, and I enjoy the beautiful songs that the birds in the trees sing. When the sun 4______, I go to school with my friends. Summer is always hot in many places, 5______ not in my village. There are so many trees and we often swim in the river at the foot of the hills. At the same time we can catch fish there. How 6______ we are when we catch some fish while 7______! On the hill there are 8______ kinds of fruit trees. When autumn comes, we often help our parents to 9______ them. Of course we can eat a lot of them. Eating some fruits on a tall tree is 10______ a happy thing. This is my country life. I like it very much. |