问题
选择题
The doctors are trying their best to reduce the people's fear__________they would be
infected(感染) by the present disease called H1N1.
[ ]
A whether
B.which
C.when
D.that
答案
答案：D
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倍
倍小题2:图中A、B两点之间的四条公路中起伏最小的是