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【多选题】
下列关于承受均布荷载的，说法正确的有( )。A.
一端是固定端支座，另一端是铰支座
B.
梁的两端都是铰支座
C.
梁跨中截面处的剪力不为零
D.
该梁内力除剪，还有弯矩和轴力
E.
两端支座处剪力的绝对值相等
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】在国际货物买卖合同中载明：FOB liner terms or FOB stowed & trimmed，则表示（ ）。
A.
买卖双方对交货地点另行作特别约定
B.
买卖双方对货物风险转移界限另行作特别约定
C.
买卖双方对货物在装运港的装货费作特别约定
D.
买卖双方对货物在卸货港的卸货费作特别约定
【简答题】阅读理解。 One day, Bob took two of his friends into the mountains. They put up their tents (帐篷) and then rode off to a forest to see the trees growing. In the afternoon, when they were about ten kilometer...
【简答题】阅读理解。 A Trip to the Forest One day Bob took two of his friends into the mountains. They put up their tents (帐篷) and then rode off to a forest to see how the trees were growing. In the afternoon when t...
【单选题】运用收益成本比对公用事业项目进行经济评价,收益成本比是( )
A.
项目的收益与成本之比
B.
项目的收益年金与成本年金之比
C.
项目的收益终值与成本终值之比
D.
项目的收益现值与成本现值之比
【单选题】为了防止邮箱邮件爆满而无法正常使用邮箱,您认为应该怎么做()
A.
A看完的邮件就立即删除
B.
B定期删除邮箱的邮件
C.
C定期备份邮件并删除
D.
D发送附件时压缩附件
【单选题】不属于ELISA法试剂要求的是
A.
酶作用专一性强
B.
必须应用单克隆抗体
C.
底物应颜色变化明显，反应终止后颜色稳定
D.
载体要吸附性好，空白值低、透明度高
E.
抗原要求纯度高，抗原性完整
【简答题】阅读理解。 One day Bob took two of his friends into the mountains. They put up their tents (帐篷) and then rode to a forest to see how the trees were growing. In the afternoon when they were about ten kilome...
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