logo - 刷刷题
下载APP
【简答题】

阅读理解。
On a hot summer day, a soft drink can really take away your thirst. At home, at school, in the park or at
the movies-you can find one almost anywhere.
Carbonated (碳酸的)
You can see bubbles in these! Of all soft drinks sold, about 75 percent are carbonated. But be careful,
carbonated soft drinks have lots of sugar and caffeine. Caffeine is not very good for you in the summer,
because it takes water out of your body. And the sugar can make you overweight if you drink too much.
Fruit juice
There are different kinds of juice. One kind is made only from fresh fruit. This kind of fruit juice may not
taste sweet enough for some people, but it is nutritious. Another kind of fruit juice tastes good but has lots of
sugar in it. Many young people buy this kind because the advertisements are good. It is bad for your teeth and
bones to drink lots of this.
Energy drinks
These kinds of drinks have caffeine and things that make people get excited in them. They are sometimes
called'party drinks'. Doctors say that if you drink too much of this kind, you may have a heart attack.
Bottled water
We have lots of different kinds of bottled water, such as mineral water, purified water and distilled (蒸馏
的) water. They are clean and easy to drink. But it is best not to drink very cold water. It may make your
stomach feel bad.
Sports drinks
Most of these have funny names like 'Scream' and 'G-Vital'. They have lots of vitamins and minerals in
them. After you play sports, you may want to drink one of these.
But if you just spend your summer holiday sitting around watching TV, you won't need them at all!
1. Which of the following is NOT suitable for you to take if you go climbing?
A. Carbonated soft drinks.
B. Fruit juice.
C. Bottled water.
D. Sports drink.
2. If you have to stay up late, what kind of water may help you?
A. Fruit juice.
B. Energy drinks.
C. Bottled water.
D. Sports drink.
3. What's the probable reason for you to drink sports drinks after sport?
A. They have funny names that sound very exciting.
B. They can recover the minerals lost in your sweat.
C. They can effectively get rid of your thirst.
D. They can take away your vitamins and minerals.
4. What's the main purpose of the author writing this article?
A. To advise us to keep away from unhealthy soft drinks.
B. To teach us some useful ways of keeping healthy.
C. To make advertisements for the soft drink companies.
D. To tell us how to choose a suitable one from different drinks.

题目标签:碳酸蒸馏
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】以下哪个不是水蒸气蒸馏的方式?( )

A.
水上蒸馏
B.
直接蒸气蒸馏
C.
多效蒸馏
D.
水扩散蒸气蒸馏

【单选题】经蒸馏所得的无热原水,为配制注射剂用的溶剂()

A.
纯化水
B.
灭菌蒸馏水
C.
注射用水
D.
灭菌注射用水
E.
制药用水

【单选题】能证明硅酸的酸性弱于碳酸酸性的实验事实是[ ]

A.
CO2溶于水形成碳酸,SiO2难溶于水
B.
CO2通入可溶性硅酸盐中析出硅酸沉淀
C.
高温下SiO2与碳酸盐反应生成CO2
D.
氯化氢通入可溶性碳酸盐溶液中放出气体,通入可溶性硅酸盐溶液中生成沉淀

【单选题】水蒸气蒸馏完毕时,应首先

A.
关闭冷凝水
B.
移去热源
C.
打开T形管上的螺旋夹
D.
拆卸装置

【单选题】水蒸气蒸馏应具备的条件中,不包括()。

A.
不溶或难溶于水
B.
在沸腾条件下不与水发生反应
C.
在100℃下有一定的蒸汽压
D.
常温下是透明的液体

【单选题】能证明碳酸比硅酸酸性强的实验事实是(  )

A.
CO2是气体,SiO2是固体
B.
高温下能发生反应:Na2CO3+SiO2高温.Na2SiO3+CO2↑
C.
CO2溶于水生成碳酸,而SiO2却不溶于水
D.
CO2通入NaSiO3溶液中有胶状沉淀生成

【单选题】纯化水再经蒸馏为:

A.
纯化水
B.
注射用水
C.
灭菌注射用水
D.
制药用水
E.
无菌无热原的水
相关题目:
【单选题】以下哪个不是水蒸气蒸馏的方式?( )
A.
水上蒸馏
B.
直接蒸气蒸馏
C.
多效蒸馏
D.
水扩散蒸气蒸馏
【单选题】经蒸馏所得的无热原水,为配制注射剂用的溶剂()
A.
纯化水
B.
灭菌蒸馏水
C.
注射用水
D.
灭菌注射用水
E.
制药用水
【单选题】能证明硅酸的酸性弱于碳酸酸性的实验事实是[ ]
A.
CO2溶于水形成碳酸,SiO2难溶于水
B.
CO2通入可溶性硅酸盐中析出硅酸沉淀
C.
高温下SiO2与碳酸盐反应生成CO2
D.
氯化氢通入可溶性碳酸盐溶液中放出气体,通入可溶性硅酸盐溶液中生成沉淀
【单选题】水蒸气蒸馏完毕时,应首先
A.
关闭冷凝水
B.
移去热源
C.
打开T形管上的螺旋夹
D.
拆卸装置
【单选题】水蒸气蒸馏应具备的条件中,不包括()。
A.
不溶或难溶于水
B.
在沸腾条件下不与水发生反应
C.
在100℃下有一定的蒸汽压
D.
常温下是透明的液体
【单选题】能证明碳酸比硅酸酸性强的实验事实是(  )
A.
CO2是气体,SiO2是固体
B.
高温下能发生反应:Na2CO3+SiO2高温.Na2SiO3+CO2↑
C.
CO2溶于水生成碳酸,而SiO2却不溶于水
D.
CO2通入NaSiO3溶液中有胶状沉淀生成
【单选题】纯化水再经蒸馏为:
A.
纯化水
B.
注射用水
C.
灭菌注射用水
D.
制药用水
E.
无菌无热原的水