单项选择题

A.synchronous rolling occursB.roll period decreasesC.ro……

When the wave period and the apparent rolling period are the same（）.

A.synchronous rolling occurs
B.roll period decreases
C.roll period increases
D.roll amplitude is dampened

<上一题目录下一题>

热门试题

单项选择题In the Northern hemisphere northerly winds may cause temperature（）.

A.falling
B.rising
C.constant
D.same

单项选择题Which of the following is not a form of precipitation?（）

A.rain
B.frost
C.sleet
D.snow

单项选择题Waves formed by the wind blowing far away are known as（）.

A.sea
B.current
C.tide
D.swell

单项选择题If the moisture content of the cargo sample is（）the Transportable Moisture Limit,then the cargo should be safe to load.

A.above
B.below
C.equal to
D.uncertain

单项选择题The amount and accuracy of the information provided on the different charts（）considerably.

A.varies
B.maintains
C.Shifts
D.assembles