题目内容

44.___

As a drop of supercooled water.
B. As a snowflake.
C. As a particle of dust.
D. As a ball of ice.

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45.___

A. In the spring.
B. In the summer.
C. In the fall.
D. In the winter.

42.___

A. To discuss a weather phenomenon.
B. To explain how to drive during storms.
C. To describe supercooled water.
D. To warn gardeners of the danger of hail.

43.___

A. Because of its size.
Because of its color.
C. Because of its layers.
D. Because of its weight.

38.___

A. Tourists.
B. Professional dancers.
C. Students.
D. Traditional musicians.

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