Snowflakes
1．题目：What does Professor Libbrecht believe to be true ?
答案：A) No two snowflakes are exactly the same in shape.
2．题目：What do the simplest snow crystals look like?
答案：D) They are six-sided.
3．题目：What are the factors affect the shape and growth rate of a snow crystal?
答案：A) Humidity and temperature.
4．题目：It can be felt from the description in the 2nd paragraph that the author
答案：A) admires the beauty of the snowflakes.
5．题目：Libbrecht is not able to
答案：C) create snowflakes that are exactly alike.
速记口诀：
雪花
1．没有雪花形相同
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2．雪花晶体六边形
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3．温度湿度是因素
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4．崇拜雪花的美丽
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5．完全相同不可能
____________________ [综合类A，理工类B]