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【简答题】

A. Yes, we do.
B. For a meal.
C. Sorry. I’m a stranger here.
D. Sorry. I have to study for a test.
E. Got up late.
F. As soon as possible.
G. Yes, he is.
H. Just behind the restaurant.

Bill: I hear Mark is free this weekend.
Jane: ()

A. Yes, we do.
B. For a meal.
C. Sorry. I’m a stranger here.
D. Sorry. I have to study for a test.
E. Got up late.
F. As soon as possible.
G. Yes, he is.
H. Just behind the restaurant.

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参考解析:
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【多选题】Ds元件( )。

A.
是自主转座元件
B.
是染色体断裂的位点
C.
与Ac元件相似
D.
内部有缺失
E.
F.
E.没有末端反向重复
G.
H.
F.依一种非复制机制转座