问题
选择题
If Joe's wife won't go to the party,_____. [ ]
A. he will either
B.neither will he
C. he neither will
D.either he will
答案
答案：B
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If Joe's wife won't go to the party,_____. [ ]
A. he will either
B.neither will he
C. he neither will
D.either he will
答案：B
，如图所示，将质量为m的物体放在皮带传送机上，随皮带一起向下以加速度a(a>gsin