下列酯类化合物在碱性条件下发生水解反应,速度最快的是:
A: [img=93x61]1803c4596ac8844.png[/img]
B: [img=133x61]1803c45977c7121.png[/img]
C: [img=133x61]1803c4598516784.png[/img]
D: [img=133x61]1803c45991e477d.png[/img]
A: [img=93x61]1803c4596ac8844.png[/img]
B: [img=133x61]1803c45977c7121.png[/img]
C: [img=133x61]1803c4598516784.png[/img]
D: [img=133x61]1803c45991e477d.png[/img]
举一反三
- 下列酯类化合物在碱性条件下发生水解反应,速度最快的是:[img=480x119]181d31caad2c4cb.jpg[/img] A: [img=93x61]1803c4596ac8844.png[/img] B: [img=133x61]1803c45977c7121.png[/img] C: [img=133x61]1803c4598516784.png[/img] D: [img=133x61]1803c45991e477d.png[/img]
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da13460ecf5.png[/img][img=36x43]1803da134eadb99.png[/img][img=57x43]1803da135709664.png[/img]…[img=58x43]1803da135e5a076.png[/img]… D: X123…k…P[img=9x43]1803da13671cd55.png[/img][img=36x43]1803da13703c21c.png[/img][img=57x43]1803da1378489ec.png[/img]…[img=58x43]1803da13822269c.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803573572a7b80.png[/img][img=36x43]180357357af3976.png[/img][img=57x43]180357358399321.png[/img]…[img=58x43]180357358bf0f84.png[/img]… D: X123…k…P[img=9x43]180357359488348.png[/img][img=36x43]180357359c7d68a.png[/img][img=57x43]18035735a57969a.png[/img]…[img=58x43]18035735ae0e3f4.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da175d21bb3.png[/img][img=36x43]1803da176510759.png[/img][img=57x43]1803da176e34ee6.png[/img]…[img=58x43]1803da177747ce7.png[/img]… D: X123…k…P[img=9x43]1803da177fbaa74.png[/img][img=36x43]1803da17890c39f.png[/img][img=57x43]1803da1792a9c56.png[/img]…[img=58x43]1803da179bd7a28.png[/img]…
- 假设随机变量X的分布律为:[img=133x61]1803215f836b1ac.png[/img],则[img=72x27]1803215f8bc7164.png[/img]等于() A: 与参数[img=10x18]1803215f935f059.png[/img]的值有关 B: 0.6 C: 0.3 D: 0.4