The tourist is prevented from entering a country if he does not have a (n) passp

游客2023-11-15  23

问题 The tourist is prevented from entering a country if he does not have a (n) passport.

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

答案 C

解析 valid的意思是“有法律效力的”,符合本题的题意。其他的三个选项分别是:operative意为“生效地”,常用作表语;effective意为“有效的,效果好的”;efficient意为“效率高的”,均不适合本题的题意。
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