问题
单项选择题
下列可能是造成防爆转接箱故障的主要原因是()。
A、密封面不平
B、防爆级别过高
C、接口多余
D、安装高度过高
答案
参考答案:A
下列可能是造成防爆转接箱故障的主要原因是()。
A、密封面不平
B、防爆级别过高
C、接口多余
D、安装高度过高
参考答案:A
在B栏中找出A栏英语句子的正确答语。 |
(A) ( )1. Do you walk to school? ( )2. How do you go to school? ( )3. Does your father drives to work? ( )4. Where does your uncle work? ( )5. Do you go to school by car? | (B) A. Yes. He has a car. B. He works in a store. C. No. I ride my bicycle. D. Yes. I live near school. E. By bus. |