The loss of prestressing concrete members after the preloading of concrete (the second batch) is
A: [img=146x34]1803b952676ef16.png[/img]
B: [img=143x41]1803b9526fa4eb0.png[/img]
C: [img=36x29]1803b95277ef881.png[/img]
D: [img=93x35]1803b9527fd24f9.png[/img]
A: [img=146x34]1803b952676ef16.png[/img]
B: [img=143x41]1803b9526fa4eb0.png[/img]
C: [img=36x29]1803b95277ef881.png[/img]
D: [img=93x35]1803b9527fd24f9.png[/img]
举一反三
- 若f(x)是g(x)的原函数，则 A: [img=141x37]18031a8b9761996.jpg[/img] B: [img=137x39]18031a8ba10e8b6.jpg[/img] C: [img=146x36]18031a8baaa02a5.jpg[/img] D: [img=146x34]18031a8bb5ea809.jpg[/img]
- 若f(x)是g(x)的原函数，则 A: [img=141x37]180319bdd656a9b.jpg[/img] B: [img=137x39]180319bde058884.jpg[/img] C: [img=146x36]180319bdeafc382.jpg[/img] D: [img=146x34]180319bdf65a381.jpg[/img]
- 设函数f(x)可微,则d(ef(x))=( )。 未知类型：{'options': ['', ' [img=51x21]17e0bc860be5938.png[/img]', ' [img=83x24]17e0bc86176d413.png[/img]', ' [img=89x24]17e0bc8622ae5f2.png[/img]'], 'type': 102}
- 在下列命题中:如果f(x)=[img=28x44]17e0bf9914bb2f1.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0;如果f(x)=[img=28x44]17e0bf992111a1c.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0;如果f(x)=[img=55x44]17e0bf992d8de0a.png[/img],那么[img=29x29]17e0bf9939482bb.png[/img]f(x)不存在;如果f(x)=[img=87x53]17e0bf99450fa82.png[/img],那么[img=27x29]17e0bf97582597b.png[/img]f(x)=0。其中错误命题的个数是( A: 0 B: 1 C: 2 D: 3
- 令F(x):x是有理数,G(x):x是实数。将命题“所有的有理数都是实数,但有的有实数不是有理数”符号化为() 未知类型：{'options': ['17e0a83a4157352.jpgx(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))'], 'type': 102}