Most environmental problems exist because adequate measures for preventing them______ in the past.

admin2011-02-14 69

问题 Most environmental problems exist because adequate measures for preventing them______ in the past.

选项 A、was not taken
B、were not taken
C、didn’t take
D、haven’t taken

答案B

解析

转载请注明原文地址:https://www.kaotiyun.com/show/Zq5O777K

CATTI三级笔译综合能力

相关试题推荐

随机试题

最新回复(0)