东风8B型内燃机车采用的4Q51型电空接触器传动部分的气缸活塞行程为()。
A、23.8mill
B、25mnl
C、26.2nlin
D、27.6l’nnl
参考答案:A
量筒量取液体时,某同学的操作如下:量筒平放,仰视液体凹液面最低处读数为29mL.倾出一部分液体,又俯视凹液面最低处读数为21mL.这位同学取出液体的体积( )
A.8mL
B.大于8mL
C.小于8mL
D.无法判断
句型转换。
1. Bob likes eggs for breakfast. (对画线部分提问)
______ ______ Bob ______ for breakfast?
2. There are oranges on the tables. (改为单数形式)
___________________________________________________
3. I like fruit, but I don't like vegetables. (用Jane作主语改写句子)
4. His brother has lunch at school. (改为一般疑问句并作否定回答)
5. Jerry, lots, healthy, eats, food, of (连词成句)