南极洲气候严寒的主要原因有（）
A. 纬度低
B. 纬度高
C. 盛行西风
D. 冬季风影响
A.threeB.thoseC.thankD.theatre
A. three
B. those
C. thank
D. theatre
The American college students like to _______ most of all.
A. discuss problems on philosophy
B. play balls
C. earn enough money
D. go to the cinemas or theatres
A.neverB.everC.sometimesD.often
A. never
B. ever
C. sometimes
D. often
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