问题
选择题
27. We haven’t settled the question of ____ it is necessary for him to study abroad.
A．if
B．where
C．whether
D．That
答案
答案：B
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27. We haven’t settled the question of ____ it is necessary for him to study abroad.
A．if
B．where
C．whether
D．That
答案：B
（硫氮
酮）