The freezing point is the temperature __________ water changes into ice.A.at which

问题描述:

The freezing point is the temperature __________ water changes into ice.A.at which
The freezing point is the temperature __________ water changes into ice.
A.at which
B.on that
C.in which
D.of what
选A原因、有解析、谢谢

A 在某个温度用 at the temperture 这里 temperature 作先行词 ,主句The freezing point is the temperature 从句 at the temperture water changes into ice.
所以这里要用 which指代先行词 ,