图示等直杆AC,杆长为4a,材料的抗拉刚度为EA,受力如图,则杆B截面的水平位移为: 。<img src="http://p.ananas.chaoxing.com/star3/origin/9d027834bb41632541d4482c401bf4a4.png" /> A: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7B4Fa%7D%7BEA%7D%22%2C%22id%22%3A183317%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/183317" /> B: 0 C: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7BFa%7D%7BEA%7D%22%2C%22id%22%3A173376%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/173376" /> D: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7B3Fa%7D%7BEA%7D%22%2C%22id%22%3A398230%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/398230" />
图示等直杆AC,杆长为4a,材料的抗拉刚度为EA,受力如图,则杆B截面的水平位移为: 。<img src="http://p.ananas.chaoxing.com/star3/origin/9d027834bb41632541d4482c401bf4a4.png" /> A: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7B4Fa%7D%7BEA%7D%22%2C%22id%22%3A183317%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/183317" /> B: 0 C: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7BFa%7D%7BEA%7D%22%2C%22id%22%3A173376%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/173376" /> D: <img data="%7B%22formula%22%3A%22%5C%5Cfrac%7B3Fa%7D%7BEA%7D%22%2C%22id%22%3A398230%7D" src="https://mooc1-1.chaoxing.com/ananas/latex/p/398230" />
formula [5fC:mjulE]
formula [5fC:mjulE]
杜邦公式 (Dupont Formula):ROE = ( )
杜邦公式 (Dupont Formula):ROE = ( )
1-02. This formula is used to __________ the area of a circle.
1-02. This formula is used to __________ the area of a circle.
Which word is inappropriate in the following sentence? A: “formula”, or an “expression” was not necessarily an “equation”; the latter involves an equality. B: formula C: was D: necessarily E: latter
Which word is inappropriate in the following sentence? A: “formula”, or an “expression” was not necessarily an “equation”; the latter involves an equality. B: formula C: was D: necessarily E: latter
There is a universial official formula to decide the tiers of the cities.
There is a universial official formula to decide the tiers of the cities.
It will be left as an exercise for the reader to prove this formula(公式).
It will be left as an exercise for the reader to prove this formula(公式).
The company has ( ) a new formula for setting the dispute.
The company has ( ) a new formula for setting the dispute.
You may use the formula to ________ the volume of the container.
You may use the formula to ________ the volume of the container.
Simpson's formula is also known as the parabola formula.
Simpson's formula is also known as the parabola formula.