They took______measures to prevent poisonous gases from escaping.A、fruitfulB、be

游客2024-10-09 21

问题 They took______measures to prevent poisonous gases from escaping.

选项 A、fruitful
B、beneficial
C、valid
D、effective

答案 D

解析形容词辨析题。fruitful意为“有收获的”；beneficial意为“有益的”；valid意为“正当的，有根据的，有效的”；effective意为“有效的，起作用的”。根据句意，D为答案。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3793401.html

相关试题推荐

随机试题

最新回复(0)

Thegovernmenthaslauncheditsconsultationonbettermeasuresofchildpov