单项选择题

Without air protection, the sun's rays______.

A．will become very cold
B．will do good to human beings
C．will become hot
D．will do harm to human beings
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单项选择题
When was An American Dictionary of the English Language published
A．1817.
B．1807.
C．1828.
D．1824.
单项选择题
According to this passage, which one of the following spelling would Webster have approved in the dictionary
A．Develop.
B．Color.
C．Theatre.
D．Honour.
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