问题补充:
It is believed that the temperature is at around 2:00 pm in on day.
A. in its highest
B. at its tallest
C. at its highest
D. in its tallest
答案:
A. in its highest
B. at its tallest
(答案→)C. at its highest
D. in its tallest
解析:at its highest意为“达到最高点”。