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题目内容
（河南城建学院-大学英语1）
What advice is given for printing the signs according to the last paragraph?
A. Colored signs are preferred.
B. Bold letters should be used.
C. Large pictures should be included.
D. Phone numbers should be provided.
A. Colored signs are preferred.
B. Bold letters should be used.
C. Large pictures should be included.
D. Phone numbers should be provided.
参考答案