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【多选题】
框架梁柱节点的类型从受力性能区分,主要有哪几种?A.
刚性连接节点
B.
铰接连接节点
C.
半刚性连接节点
D.
消能减震节点
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反馈参考答案：
举一反三
【简答题】When the pressure gets low, the boiling-point becomes low.
【多选题】When the low-carbon steel specimen is stretched and compressed in the axial direction, which of the following options is correct? .
A.
proportional limit s are equal
B.
yield strengths are equal
C.
ultimate strengths are equal
D.
elastic moduli are equal
【简答题】When the pressure gets low, the boilling-point becomes low.
【简答题】操作系统的基本特性是
【判断题】As a rule ,when the pressure of the reservoir is high,the rate of production is low; but when the pressure is low,the rate is high.
A.
正确
B.
错误
【简答题】Changes in the prices of goods can cause changes in production and consumption. Production increases when the prices are high. As the prices of goods go up, producers make more goods because they can ...
【单选题】When the costs of supplies increase in an industry, the low-cost leader
A.
may continue competing with rivals on the basis of product features.
B.
will lose customers as a result of price increases.
C.
will be unable to absorb higher costs because cost-leaders operate on very narrow profit margins.
D.
may be the only firm able to pay the higher prices and continue to earn average or above- average returns.
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