單項(xiàng)選擇題假如重力突然消失，下列情況仍然存在的是（）。

A.川流不息
B.萬(wàn)馬奔騰
C.五光十色
D.短斤少兩


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1.單項(xiàng)選擇題The examination will begin at 10：30．Those who come late（）to the examination room．

A.have not been admitted
B.didn’t admit
C.will not be admitted
D.don’t admit

2.單項(xiàng)選擇題You should explore your talents so as to find（）your real interests lie．

A.how
B.what
C.where
D.which

3.單項(xiàng)選擇題

一John and l will celebrate our fortieth wedding anniversary next month．
一Oh，（）。

A.well done!
B.cheer up!
C.go on!
D.congratulations!

4.單項(xiàng)選擇題Classification of vowels is made up of the following EXCEPT（）。

A.the openness of the mouth
B.the position of the tongue
C.the shape of the tip
D.the width of the vowels