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【单选题】
杂交后代中，分离最大和选择最为重要的世代是（）。A.
F1
B.
F2
C.
F3
D.
F4
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反馈参考答案：
举一反三
【简答题】将“飞机——箱子”想象为“飞机穿过箱子”的记忆术是（ ）。
【简答题】将“飞机—箱子”想象为“飞机穿过箱子”运用的是_________。
【单选题】听力原文：W: I am sorry I am having trouble reading my notes. Did you say three lunches in that first paragraph? M: No. I said free lunches, the children don’t have to pay for them. And there are many lunc...
A.
It involved a few lunches.
B.
There were free lunches.
C.
There were three lunches,
D.
There are more than free lunches.
【简答题】将“飞机—箱子”想象为“飞机穿过箱子”运用的是记忆术中的__________。
【单选题】It was _____ several years ____ I had an opportunity of seeing the bird again .
A.
for; before
B.
not for ; that
C.
for ; when
D.
not for ; then
【单选题】A: I haven't been driving as fast as the other cars.B: ______
A.
Sorry, madam. I am sorry there is something wrong with your car.
B.
Don't be arguing with me. I'll kill you if you drive so far next time on the superhighway.
C.
The other cars? Different cars have to observe different traffic rules, you know.
D.
I'm sorry, madam, your speed limit's fifty-five miles per hour. I have to give you a ticket.
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