The United Nations Conference on Drug Abuse which took place earlier this year in Vienna
公共英语
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The United Nations Conference on Drug Abuse, which took place earlier this year in Vienna, was a very______ meeting.
A.compulsory
B.profound
C.productive
D.extravagant
请帮忙给出正确答案和分析,谢谢!
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正确答案:A
解析:本题的四个选项中,A项productive的意思是“富有成效的,有收获的”,如They work hard,but their efforts are not very productive(他们很努力,但效率不太高),B项overwhelming的意思是“压倒的;势不可挡的”,C项compulsory的意思是“必须做的;义务的;必修的;强制的,强迫的”,D项protective的意思是“保护的,防护的”。
