单项选择题
What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）
A.A pumping of the barometer up and down a few millibars
B.A sudden wind shift from southwest to northwest followed by steadily increasing winds
C.The normal swell pattern becoming confused，with the length of the swell increasing
D.An overcast sky with steadily increasing rain from nimbostratus clouds
点击查看答案&解析
相关考题
-
单项选择题
To prevent damage by and to storage batteries aboardsmall passenger vessels they should be located（）.
A.in trays constructed of material that is resistant to the electrolyte
B.so as to prevent movement when the vessel pitches and rolls
C.in a well ventilated area
D.All of the above -
单项选择题
The vertical movement of a vessel in the water is called（）.
A.pitch
B.sway
C.heave
D.roll -
单项选择题
The time required to incline from bow down to stern down and return to bow down again is called（）.
A.rolling period
B.amplitude moment
C.inclining moment
D.pitching period
