下列化合物能与亚硝酸反应放出氮气的是
A: [img=121x27]180306524e55231.png[/img]
B: [img=52x61]18030652568122e.png[/img]
C: [img=111x34]180306525e4dc46.png[/img]
D: [img=109x35]1803065266d495d.png[/img]
A: [img=121x27]180306524e55231.png[/img]
B: [img=52x61]18030652568122e.png[/img]
C: [img=111x34]180306525e4dc46.png[/img]
D: [img=109x35]1803065266d495d.png[/img]
举一反三
- 下列化合物能与亚硝酸反应放出氮气的是 A: [img=100x60]1803065a3b986d4.jpg[/img] B: [img=100x60]1803065a47272a0.jpg[/img] C: [img=100x60]1803065a51ea34c.jpg[/img] D: [img=100x60]1803065a5ac8f5b.jpg[/img]
- 下列化合物能与亚硝酸反应放出氮气的是 A: [img=100x60]1803065834d195f.jpg[/img] B: [img=100x60]18030658401f586.jpg[/img] C: [img=100x60]18030658498cd68.jpg[/img] D: [img=100x60]1803065853fb0fd.jpg[/img]
- 下列化合物能与亚硝酸反应放出氮气的是 A: [img=100x60]1803065c4bd32fe.jpg[/img] B: [img=100x60]1803065c56b07ab.jpg[/img] C: [img=100x60]1803065c6130387.jpg[/img] D: [img=100x60]1803065c6b8ca42.jpg[/img]
- 下列化合物能与亚硝酸反应放出氮气的是 A: [img=100x60]18030654b7a3112.jpg[/img] B: [img=100x60]18030654c2bd7a2.jpg[/img] C: [img=100x60]18030654cdb6593.jpg[/img] D: [img=100x60]18030654d94fbe3.jpg[/img]
- 已知随机变量X的分布函数为[img=136x49]1803b69024c8270.png[/img] ，则X的均值和方差分别为 A: E(X)=2, D(X)=4 B: E(X)=4, D(x)=2 C: [img=162x43]1803b6902cd8bfb.png[/img] D: [img=162x43]1803b69034d9ffd.png[/img]