题目内容
【题目】This factory produced much dirty water, which resulted in a wide______of environmental problems．
A．branchB．range
C．speciesD．wave
【答案】B
【解析】
选B，a range of 一系列的；a branch of 一条；一支 ,本题题意是“一系列的环境问题。”
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题目内容
【题目】This factory produced much dirty water, which resulted in a wide______of environmental problems．
A．branchB．range
C．speciesD．wave
【答案】B
【解析】
选B，a range of 一系列的；a branch of 一条；一支 ,本题题意是“一系列的环境问题。”