在铁路装卸油系统中,同一油料鹤管的间距大概为()。
A.4m
B.6m
C.12m
D.24m
参考答案:C
句型转换(每题2分,满分10分)
1. Climb the tree. (改为否定句)
2. Are these orange oranges? (改为单数句)
3. The girl is a teacher. (对划线部分提问)
4. We read English for half an hour every day.(对画线部分提问)
5. His mother wants to buy some nice food..(对画线部分提问)
在前防守