ST-28-24、 JT-28-25所对应的楼层高度为（ ）
A. 2800mm
B. 2900mm
C. 2400mm
D. 2500mm
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ST-30-25所对应的楼梯间净宽度为（ ）
A. 2800mm
B. 2900mm
C. 2400mm
D. 2500mm
ST-30-25所对应的楼层高度为（ ）
A. 3000mm
B. 2900mm
C. 2400mm
D. 2500mm
标准图集中ST-28-24梯段板支座处为销键连接。上端支承处为固定铰支座，下端支承处为（ ）。
A. 固定铰支座
B. 滑动铰支座
[音频]Which of the following is not mentioned as an advantage of staying healthy?
A. Having a better looking body.
Being in a better mood.
C. Being free from sickness.
D. Getting strong in the body.
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