反应A → P（目的产物）→R + S，目的产物P的选择性为_______。
A: [img=110x75]180343e1a0457fc.jpg[/img]
B: [img=113x73]180343e1ab13143.jpg[/img]
C: [img=108x74]180343e1b5dc26f.jpg[/img]
D: [img=114x76]180343e1c046783.jpg[/img]
A: [img=110x75]180343e1a0457fc.jpg[/img]
B: [img=113x73]180343e1ab13143.jpg[/img]
C: [img=108x74]180343e1b5dc26f.jpg[/img]
D: [img=114x76]180343e1c046783.jpg[/img]
举一反三
- 反应A → P（目的产物）→R + S，目的产物P的选择性为_______。 A: [img=110x75]180343e1459ef74.jpg[/img] B: [img=113x73]180343e152422f8.jpg[/img] C: [img=108x74]180343e15e29c1f.jpg[/img] D: [img=114x76]180343e1683a240.jpg[/img]
- 反应A → P（目的产物）→R + S，目的产物P的选择性为_______。 A: [img=110x75]180362449340d2f.jpg[/img] B: [img=113x73]180362449e93692.jpg[/img] C: [img=108x74]18036244a94263f.jpg[/img] D: [img=114x76]18036244b4a23b9.jpg[/img]
- 设X与Y相互独立，均服从参数为1的指数分布，则P(X+Y<1) A: [img=84x24]18036de4b8088be.png[/img] B: [img=75x24]18036de4bf77b71.png[/img] C: [img=75x24]18036de4c8172a3.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)
- 设X与Y相互独立，均服从参数为1的指数分布，则P(X+Y<1) A: [img=84x24]1803645ffb36da1.png[/img] B: [img=75x24]180364600306be0.png[/img] C: [img=75x24]180364600c8ab8b.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)
- 设X与Y相互独立，均服从参数为1的指数分布，则P(X+Y<1) A: [img=84x24]18035b3d47a8410.png[/img] B: [img=75x24]18035b3d50597f9.png[/img] C: [img=75x24]18035b3d59275e6.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)