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听力原文:W: I know why that child grows so tall for his age of four. His mother requires him to drink a cup of milk every night before going to beD.
M: That may not be the reason. Have you ever seen his father who is close to 2 meters tall?
Q: What contributes most to the child's height according to the man?
(15)
A.Milk.
B.Sleep.
C.ExercisE.
D.Genes.

A.M:
B.Milk.
B.Sleep.
C.ExercisE.

【参考答案】

D
解析:对话里男士提到孩子父亲近2米高,说明他认为基因是小孩高的关键,故选D。
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A.W:
B.
W:
C.
W:
D.
W:
E.
W:
F.
(20)
A.Because
G.
B.Because
H.
C.Because
I.
D.Because