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题目内容
（南阳师范学院-教育学-大学英语（四））
In many countries now seat belts are _____ for the driver and front seat passengers at least.
(A) necessary
(B) in demand
(C) in need
(D) compulsory
(A) necessary
(B) in demand
(C) in need
(D) compulsory
参考答案
