有助于形成“创新-转让-再创新”良性循环的技术创新环节是（）。
A. 技术创新过程的优化
B. 技术创新组织的规范
C. 技术创新成果的扩散
D. 技术创新风险的防范
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The author brushed his teeth over and over
A. to relieve himself of the pressure.
B. to ease his toothache.
C. to shake off the cold.
D. to remove the dirt.
工业废水中的还原性物质属于( )。
A. 放射性物质
B. 色度和恶臭
C. 无机物
D. 油类物质
The policeman Wrote down all the particulars of the accident.
A. secrets
B. details
C. benefits
D. words
The purpose of the rhyming games is to make preparations for children to write poems.
A. Right
B. Wrong
C. Not mentioned
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