问题
选择题
下列各组物质按混合物、化合物、单质顺序排列的是（ ）
A．天然气、碱式碳酸铜，空气
B．纯碱、大理石、稀有气体
C．熟石灰、水煤气、水银
D．稀硫酸、火碱、金刚石
答案
答案：D
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下列各组物质按混合物、化合物、单质顺序排列的是（ ）
A．天然气、碱式碳酸铜，空气
B．纯碱、大理石、稀有气体
C．熟石灰、水煤气、水银
D．稀硫酸、火碱、金刚石
答案：D
| 完形填空。 | |||
| Jane really likes action movies __1__ she often goes to see __2__ action movies. She thinks they are very __3__ . She thinks documentaries are __4__ , so she doesn't like them. She thinks__5__ scary. She __6__ Beijing Opera. Some people don't like __7__ , but she thinks it very __8__, She thinks she can learn about Chinese history. She __9__ her friends __10__ see Beijing Opera, because they are good friends. | |||
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