问题
选择题
Mum, my pants are too ______. I want a long pair. [ ]
A. small
B. big
C. short
D. new
答案
答案：C
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Mum, my pants are too ______. I want a long pair. [ ]
A. small
B. big
C. short
D. new
答案：C
面嵌体洞型轴壁向方外展的角度应为（）