问题
选择题
Brian _____ the cinema five minutes later. [ ]
A. gets to
B. arrived at
C. reaches
D. stayed
答案
答案：B
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Brian _____ the cinema five minutes later. [ ]
A. gets to
B. arrived at
C. reaches
D. stayed
答案：B
：氮分子
：2个氢氧根离子
