装气缸套封圈，如果封水圈切边，则发动机运行后发生：（）
A、烧瓦
B、拉缸
C、机油变白
D、水漏到发动机外部
参考答案：C
句型转换。
1. My house is on Green Street. (对画线部分提问)
______ is ______ house?
2. It's time for lunch. (改为同义句)
It's time ______ ______ lunch.
3. Miss Gao is our English teacher. (改为同义句)
Miss Gao English ______ ______.
4. I had a busy weekend. (改为一般疑问句)
______ you ______ a busy weekday?
5. He is doing his homework now. (用 every day代替 now且改为否定句)
He______ ______ his homework every day.
医学伦理学公正原则的本质是对病人（）
A.充满爱心
B.细心负责
C.一视同仁
D.耐心周到
