单项选择题
As a high pressure system approaches，the barometer reading（）.
A.stays the same B.falls C.rises D.falls rapidly
单项选择题 Application for a waiver of any requirements of the regulations for oil transfer operations must be submitted to the（）.
单项选择题 Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.
单项选择题 Apparent time is based on（）.
