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【单选题】
倒放的T字形截面梁发生弯曲变形时如下图所示,认为( )是不对的。A.
梁截面的中性轴通过形心
B.
梁的最大压应力出现在截面的上边缘
C.
最大压应力绝对值小于最大拉应力
D.
最大压应力与最大拉应力数值不等
拍照语音搜题，微信中搜索"皮皮学"使用
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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】— ______. — Go along this road to the end. [ ]
A.
Where are we now?
B.
What are we doing at the supermarket?
C.
How can I get to the supermarket?
D.
Who can get to the supermarket?
【单选题】—_____ —Go up this road to the end.
A.
Where are we now?
B.
What are we doing at the supermarket?
C.
How can I get to the supermarket?
【判断题】The key words of "We've Been Hit!" are we and hit. So the text always focuses on “we”and "hit"--- Who are we? What are we? How do we feel after being hit? What are we doing? etc. From the above, it's...
A.
正确
B.
错误
【简答题】会计凭证是用来记录经济业务，明确经济责任，并作为（）依据的书面证明。
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