单项选择题
A.dryer the air mass will be
B.cooler the temperature will be
C.greater the force of the wind will be
D.warmer the temperature will be
单项选择题 The form of cloud often known as mackerel sky which is generally associated with fair weather is（）.
单项选择题 The fog produced by warm moist air passing over a cold surface is called（）.
单项选择题 The belt of light and variable winds between the westerly wind belt and the northeast trade winds is called the（）.