题目内容
(请给出正确答案)
[主观题]
If [图], then [图]?A、[图].B、[图].C、[图].D、Does not...
If, then?
A、.
B、.
C、.
D、Does not exist, sinceis not one-to-one on.
提问人:网友harryleo
发布时间:2022-01-07
If, then?
A、.
B、.
C、.
D、Does not exist, sinceis not one-to-one on.
有机物A与B是分子式为C5H10O2的同分异构体,在酸性条件下均可水解,水解产物如图所示,下列有关说法中正确的是 |
[ ] |
A.X、Y互为同系物 B.C分子中的碳原子最多有3个 C.X、Y化学性质不可能相似 D.X、Y一定互为同分异构体 |
Supposeand,, then
A、is concave up on.
B、is concave down on.
C、has a critical point.
D、is decreasing on.
Supposeis a real function. Which of the following statements is NOT true?
A、Ifis differentiable on, thenis continuous on.
B、Ifis continuous on, thenexists.
C、Ifexists for some, thenis continuous at.
D、If,, thenis constant on.
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