单项选择题

Cirrus clouds are composed primarily of（）.

A.ice crystals
B.water droplets
C.snow crystals
D.nitrogen

<上一题 目录 下一题>
热门 试题

单项选择题
An aneroid barometer reading should be corrected for differences in（）.

A.elevation
B.temperature
C.wind speed
D.latitude
单项选择题
An anemometer on a moving vessel measures（）.

A.apparent wind speed only
B.true wind speed and true wind direction
C.true wind speed only
D.apparent wind speed and true wind direction
相关试题