The temperature ______ Fahrenheit and Celsius thermometer readings are equal is

游客2024-10-15  6

问题 The temperature ______ Fahrenheit and Celsius thermometer readings are equal is 40 degrees below zero.

选项 A、by which
B、for which
C、to which
D、at which

答案 D

解析 定语从句题。句子主干为The temperature is 40 degrees below zero,中间的定语从句,修饰限定The temperature。将先行词The temperature带入从句,即还原为:Fahrenheit and Celsius thermometer readings ale equal——the temperature。只有at能与the temperature搭配,句意通顺。
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