题目内容

_____ in the neck muscles can cause headaches.

A. tension
B. obstacle
C. abuse
D. burden

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The measures will lighten the tax _____ on small businesses.

A. convention
B. burden
C. proof
D. characteristic

Drug trafficking and drug _____ are truly the causes of many crimes.

A. abuse
B. luxury
C. tension
D. burden

网页是一种可以在互联网传输,能被浏览器识别显示出来的编码文件。( )

A. 对
B. 错

网页的表现形式千变万化,因此构成要素各不相同。()

A. 对
B. 错

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