Some researchers believe that there is no doubt _______ recycling saves energy a

游客2023-10-30 28

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://tihaiku.com/zcyy/3143153.html

相关试题推荐

随机试题

最新回复(0)

InafewweeksresearcherswillbeginscouringtheFloridaseafloorfora17