2. 外语
  3. Some researchers believe that there is no doubt ______recycling saves energy and raw materials, and reduces pollution.

Some researchers believe that there is no doubt ______recycling saves energy and raw materials, and reduces pollution.

admin2018-03-21  77
问题 Some researchers believe that there is no doubt ______recycling saves energy and raw materials, and reduces pollution.
选项 A、which
B、that
C、what
D、whether
答案B
解析 句子结构分析题。名词doubt“怀疑”后的同位语从句用whether连接，如：There is some doubt whether he can recover from the serious disease．在no doubt“不怀疑”之后的同位语从句用that连接。答案为B。
转载请注明原文地址:https://kaotiyun.com/show/jODK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)