问题
选择题
There aren't _______ vegetables at home now. Can you go and get _______? [ ]
A. some; some
B. any; any
C. some; any
D. any; some
答案
答案：D
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There aren't _______ vegetables at home now. Can you go and get _______? [ ]
A. some; some
B. any; any
C. some; any
D. any; some
答案：D
2HI(g)达到平衡时的标志是[ ]