皮皮学,免费搜题
登录
搜题
【单选题】
下列说法不正确的是
A.
利用分液漏斗进行分液操作时,先打开分液漏斗旋塞,使下层液体慢慢流出,待下层液体完全流出后,关闭旋塞,上层液体再从上面倒出
B.
固体药品取用:块状固体用镊子夹取,粉末状的用药匙或纸槽转移
C.
在用简易量热计测定反应热时,可使用碎泡沫起隔热保温的作用、环形玻璃搅拌棒进行搅拌、酸和过量的碱充分反应、取2—3 次的实验平均值,以达到良好的实验效果
D.
用标准浓度的盐酸滴定未知浓度NaOH溶液时,酸式滴定管未用同浓度盐酸润洗,将导致测定结果偏低
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】小题1:If you want to eat some seafood, you can go to ________. A.Willie Mae's B.Natasha's Kitchen C.EIFFEL SOCIETY D.HOSHUN RESTAURANT 小题2:You can call ________ if you want to have a taste of Southern h...
【简答题】根据句意和汉语提示写出英语单词。 1. If you want to eat Chinese food, you should go to the Chinese __________ (餐馆). 2. Tom ___________ (介绍) me to all his family. 3. It's bad ___________ (礼貌) to eat like that. 4. When ...
【简答题】根据句义和汉语提示写出英语单词. 1. If you want to eat Chinese food, you should go to the Chinese __________(餐馆). 2. Tom __________(介绍) me to all his family. 3. It's bad __________(礼貌) to eat lik e that. 4. When I go...
【单选题】In England, if you want to eat well, you should have three times a day.
A.
breakfast
B.
lunch
C.
dinner
【简答题】小题1: If you want to eat some seafood, you can go to ______ A.Willie Mae's B.Natasha's Kitchen C.EIFFEL SOCIETY D.HOSHUN RESTAURANT 小题2: You can call ______if you want to have a taste of Southern home ...
【单选题】If you want to eat good noodle, you can go to ______.
A.
Airirang
B.
Itoen
C.
Seoul Restaurant
D.
Gao LI Korean Restaurant
【单选题】If you want to eat this kind of hamburger, first open the box, next take it out, ________ eat it. [     ]
A.
first
B.
second
C.
finally
【多选题】革兰氏染色的意义( )
A.
鉴别细菌
B.
指导选择用药
C.
确诊疾病
D.
预防疾病
【单选题】某患者血沉增快,主要是由于
A.
红细胞脆性增大
B.
血浆中球蛋白和纤维蛋白原含量增多
C.
血浆中白蛋白和卵磷脂含量增多
D.
红细胞内血红蛋白浓度降低
E.
血细胞比容减小
【单选题】样品制备过程中 ,检样的量至少需要( )。
A.
5g
B.
10g
C.
15g
D.
20g
相关题目: