The tourist is forbidden to enter a country if he does not have a (an) ______ pa

游客2023-11-22  17

问题 The tourist is forbidden to enter a country if he does not have a (an) ______ passport.

选项 A、operative
B、valid
C、effective
D、efficient

答案 B

解析 valid意为“有效的,合法的”,通常指证件等合法、有效,如:This train ticket is valid for three months.这张火车票三个月内有效。operative指法律、法规、规定等“有效的”,如:This law be- came operative on May 1.这条法律5月1日生效。effective常指方法或措施有效,强调能达到预期效果,如:We should take effective measures to solve this problem.我们应采取切
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