单选题：Techniques to employ the energy of the sun are being develop

题目内容：

Techniques to employ the energy of the sun are being developed. A．convert
B．store
C．use
D．receive

参考答案：

答案解析：

She was close to success.

She was close to success.A．fast B．quick C．near D．tight

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Why does the author mention the Massachusetts Bay Colony?A．It was the headquarte

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What does the sentence "If it is not yet speeding discoveries, it is certainly a

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