设有一固液比为1:9的矿浆100吨,经浓缩机浓缩至固液比为1:1,则浓缩机除去的水量

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问题:

设有一固液比为1:9的矿浆100吨,经浓缩机浓缩至固液比为1:1,则浓缩机除去的水量为()。

A、90吨

B、80吨

C、70吨

D、10吨

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题型:单项选择题

根据短文内容,回答下列问题。

     Nowadays more and more people in the world are getting fatter, which troubles them a lot. In the past 25

years, the number of the people with obesity (肥胖症) in Europe has doubled. Experts say that it has a lot to

do with our eating habits.

     Our eating habits are very important for good health and a strong body. Most of us like eating sweets and

ice cream better than meat and rice. Sweets and ice cream are not bad for us if we eat them at the end of a

meal. If we eat them before a meal, they may take away our appetite (食欲).

     It's important for us to eat our meal at the same time each day. When we feel worried or excited, we may

not want to eat. A long time ago, in England, some judges often decided whether a man was tell-ing the truth

by giving him some dry bread. If the man could not swallow (呑) the bread, it meant that he wasn't telling the

truth. A man who is worrying something has difficulty in swallowing anything dry, because he loses his appetite.

1. Are more and more people getting fatter in the world?

    ________________________________________________________________

2. Do most people like eating sweets or meat?

    ________________________________________________________________

3. What may happen to people when they feel worried or excited? 

    ________________________________________________________________

4. Why did the judges give some dry bread to the man in old England? 

    ________________________________________________________________

5. What are good eating habits? 

    ________________________________________________________________

题型:单项选择题

—Are you going to help John with his Chinese this evening?

—No,  He ________ to England. He will be back next month. [ ]

A. returned

B. has returned

C. returns

D. will return

题型:单项选择题

耳鼻喉科的物理治疗,错误的是()。

A.超短波治疗鼻炎予鼻两侧并置

B.紫外线治疗扁桃体炎需达到红斑量

C.超短波治疗咽炎中电极并置于咽部两侧

D.毫米波治疗耳廓软骨膜炎,可用于急性期或吸收期

E.紫外线治疗急性中耳炎时,应将石英导子伸入外耳道内

题型:单项选择题

英国资产阶级革命的领导力量是资产阶级A工人B。 [ ]

                                                                                                                                                              

题型:单项选择题

男性,60岁,因晕厥被他人送到急诊科,急查心电图示窦性心动过缓,心率48次/分,追问病史得知:既往曾有类似发作,但不频繁,医生曾劝其安装人工心脏起搏器,因患者无力支付该项开支,故从未行特殊处理。目前的处理最好是

A.嘱病人回家,不行任何处理

B.立即收住院,行CCU监护,药物治疗

C.立即收住院,再劝其紧急安装人工心脏起搏器

D.立即收住院,先安临时人工起搏器

E.留急诊科观察

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