单项选择题
A.Hill of low pressure B.Trough of low pressure C.Valley of low pressure D.Ridge of low pressure
Tropical cyclones are classified by form and intensity....
单项选择题Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
A.Hurricane B.Tropical disturbance C.Tropical depression D.Cyclone
The wind is（）and decreasing.A.anticlockwise rotatingB.a...
单项选择题The wind is（）and decreasing.
A.anticlockwise rotating B.anticlock rotating C.clockwise rotating D.clock rotating
The strong wind will make us（）here for some days.A.To s...
单项选择题The strong wind will make us（）here for some days.
A.To stay B.Staying C.Stay D.Stayed
