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根据下图回答问题： （1）写出图中标号仪器名称：① ； ② ，③ （2）实验室用高锰酸钾制取氧气发生装置 （填序号，下同）并收集氧气装置 ，反应文字表为 。检验装置气密性时，除了用手紧握的方法外，还可以采用的方法是 ； （3）实验室可用二氧化锰固体与过氧化氢溶液在常温下混合制取氧气，为了得到平稳的氧气流，应选择的发生装置是 ；文字表为： （4）用G装置做硫在氧气中燃烧实验，燃烧结束后取出燃烧匙，立即用玻璃片盖住并震荡，若将集气瓶倒转，发现玻璃片被吸住而掉不下来（如甲图），其原因是 ； （5）为完成上述实验，用10mL量筒量取6mL氢氧化钠溶液，读数时量筒内的液体凹液面最低处与 处（填a或b）刻度线保持水平。
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举一反三
【单选题】Many medical experts regard ________ as a kind of intellectual property that should also be legally protected.
A.
subscription
B.
description
C.
ascription
D.
prescription
【简答题】English is now the international language for airline pilots, scientists, medical experts, businessmen and many others. Consequently, more and more people are learning it.
【单选题】Many experts have realized that the current medical system needs ________ to meet the needs of our increasingly aging population. [ ]
A.
reforming
B.
inspecting
C.
forming
D.
achieving
【单选题】In time, the fossil fuel waves may come to be seen as something of a historical blip.
A.
F
B.
O
【简答题】计算机常用的辅助存储器有软盘、________和________。
【单选题】Food and Cancer Medical Experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could re...
A.
Right
B.
Wrong
C.
Not Mentioned
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