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Without a (an) ________ passport a tourist is forbidden to enter a country.A、ope
Without a (an) ________ passport a tourist is forbidden to enter a country.A、ope
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2024-10-30
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问题
Without a (an) ________ passport a tourist is forbidden to enter a country.
选项
A、operative
B、effective
C、valid
D、efficient
答案
C
解析
四个选项都有“有效”的意思，但它们的含义有所不同。valid意为“有效的，合法的”，通常指征件等合法、有效；operative指法津、法规，规定等“有效的”；effective常指方法或措施有效，强调能达到预期效果；efficient可以指人有能力或指某方法有效，强调“通过最短的时间和最少的精力达到预期效果。”因此C为正确选项。
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