问题
选择题
Which sign will you probably see in front of a low door? [ ]
A. SOLD OUT
B. WET FLOOR
C. NO EXIT
D. MIND YOUR HEAD
答案
答案：D
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Which sign will you probably see in front of a low door? [ ]
A. SOLD OUT
B. WET FLOOR
C. NO EXIT
D. MIND YOUR HEAD
答案：D