问题
选择题
All the substances,______ solids,liquids or gases,are made up of entirely atoms. [ ]
A. whether they
B. whether
C. whether are they
D. whether are
答案
答案：B
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All the substances,______ solids,liquids or gases,are made up of entirely atoms. [ ]
A. whether they
B. whether
C. whether are they
D. whether are
答案：B