单项选择题

According to the weather forecast, which is usually（）, it will snow this afternoon.

A. accurate
B. precise
C. exact
D. perfect

<上一题目录下一题>

热门试题

单项选择题

The biological clock is believed to play an essential role in（）

A. the regulation of body temperature
B. the secretion of hormones
C. animal reproduction
D. many aspects of plant and animal physiology

单项选择题

In his observation, the French scientist noticed that the leaves of a certain plant maintained its opening-and-closing cycles（）

A. even when it was kept in a murky place all day
B. even if it was placed in the moonlight
C. even when he was observing it from a dark place
D. even during the night time