题目内容

下列矿物遇到稀盐酸剧烈气泡()

A. 石英
B. 方解石
C. 黑云母
D. 正长石

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在矿物摩氏硬度计中,摩氏硬度为7的矿物是()

A. 石英
B. 长石
C. 方解石
D. 金刚石

A case can protect your iPod from being bent, dropped or crushed.

A. 对
B. 错

You should fit a connector(接头) into a port(端口) correctly and join them with ease.

A. 对
B. 错

iPod playtime might shorten if it’s stored in a place where the temperature is below 0oC.

A. 对
B. 错

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