题目内容

/ə/ is the least common vowel sound in English.

A. 对
B. 错

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Can't never has a strong pronunciation.

A. 对
B. 错

/i/ is used is many unstressed syllables in words.

A. 对
B. 错

支架的高宽比不宜大于( ),当高宽比大于该值时,应加强整体稳定性措施,

2、模板及支架的变形限值应符合下列规定,对支架的轴向压缩变形限值或侧向挠度限值取为计算高度或计算跨度的( )。

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