题目内容
下列实验操作中,正确的是( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241110279104669.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241110278166373.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241110278638288.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241110278949465.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241110279104669.png)
A.倾倒液体 | B.称量固体 | C.取用固体粉末 | D.点燃酒精灯 |
C
试题分析:A、用试剂瓶向试管内倾倒液体时有以下注意事项:瓶塞倒放在桌面上,标签向着手心,试管要倾斜,试剂瓶口与试管口紧挨着.故A错;B、称量药品时要左盘放药品右盘放砝码,故B错;C、粉末状药品的取用方法:先将试管横放(或倾斜)用药匙将药品送到试管底部,再将试管竖起,故C正确;D、点燃酒精灯要用火柴点燃,不能用酒精灯引燃,否则容易引起火灾,故D错.
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目