在一个细胞周期中（）
A.分裂间期占有的时间长
B.分裂间期占有的时间短
C.分裂期占有的时间长
D分裂间期和分裂期占有的时间相当
参考答案：A
句型转换。
1. May I help you? (改为同义句)
_____can I_____ for you?
2. Maybe he is a teacher. (改为同义句)
He_____ _____a teacher．
3. I have looked in all the rooms in the school. (改为一般疑问句)
_____you_____ in all the rooms in the school?
4. I'm looking for Lisa. (对划线部分提问)
_____ _____you looking for?
5. What does the clock say? (用12:30作出回答)
_____ _____12:30.
肺实质包含下述哪些成分()
A．肺泡管
B．肺泡囊
C．小叶间隔
D．肺泡
E．肺泡壁
