问题
单项选择题
柴油机气动预供油泵连续运转时间不宜过长，一般不应超过（）。
A.1min
B.2min
C.3min
D.4min
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
柴油机气动预供油泵连续运转时间不宜过长，一般不应超过（）。
A.1min
B.2min
C.3min
D.4min
参考答案：A
| 选出相应的句子完成对话。 | |
— They are dancing. 2. — What time is it? — _________________________________ 3. — _________________________________ — Sure. 4. — What would you like to drink? — _________________________________ 5. — _________________________________ — Sorry. I can't. It's hard. |