Eighteen states have enacted laws to regulate activities in wetlands.A.YB.NC.NG

外语类 成人英语三级 已帮助 人

Eighteen states have enacted laws to regulate activities in wetlands.

A.Y

B.N

C.NG

更新中~

答案解析

难度★★☆ 搜索
  • 正确答案:C
    解析:文章在“How are wetlands protected?”一段中指出“Beyond the federal level,a number of states have enacted laws to regulate activities in wetlands”:“除政府之外,有一些州也紧跟其后,他们颁布法令以规范湿地中的活动”。文中只用了a number of(若干,一些),并没有提到确切数字。故答案为NG。