下列说法正确的是( ) A.HCl的摩尔质量是36.5g.mol-1 B.标况下

题型:选择题

问题:

下列说法正确的是(  )

A.HCl的摩尔质量是36.5 g.mol-1

B.标况下,1mol任何气体的体积都为22.4L

C.摩尔质量就等于物质的相对质量

D.1molCO2和1mol CO的质量相等

考点:气体摩尔体积摩尔质量
题型:选择题

阅读理解。

     Internet is educational . Many  people  think  children  should be allowed to surf  the Internet as they

wish . In this way ,they can look through different subjects on  different  kinds  of  websites according to

their own interest . But in my opinion ,children should always be watched while surfing the internet .

     Many websites have information and pictures that children should  not  see . There  are  many  things

that children don't understand .All of  these  may have  some bad  influence on children 's  development .

Also , it is dangerous to let childern use chat rooms by  themselves .Many parents  tell  their children not

to talk to strangers on the street , so they should be careful of whom their children talk to on the internet,

too . What's more ,  sitting in the front of a computer  for a  long  time isn't good  for children's  eyes , so

parents should monitor(监视) the time that childen spend on the internet .

     In a word ,children should be kept away anything that could be bad for them . I strongly believe  that

it is necessary for paents to watch their children when they use internet .

1.Is the Internet educational all the time ?        

    ___________________________________

2. What do the parents tell children to do when they meet strangers on the street ?

   ___________________________________

3.Why shouldn't children sit in front of a computer for a long time ?

   ___________________________________

4.Who can help children stay away from the bad influence on the Internet ?

   ___________________________________

5. What does the writer want to tell us in the passage ?

    ________________________________      

题型:选择题
在△ABC中,角A,B,C对的边分别为a,b,c,且c=2,C=60°.
(1)求
a+b
sinA+sinB
的值;
(2)若a+b=ab,求△ABC的面积S△ABC
题型:选择题

男性,70岁,因间歇、全程肉眼血尿1周,发作性腰腹部绞痛入院,排泄性尿路造影示右肾部分充盈缺损。

应首先采取的治疗方法为()

A.肾切开取石

B.止血、观察

C.肾切除

D.局部切除

E.根治性肾切除

题型:选择题

人民调解委员会委员在( )情况下,不可以接受当事人的馈赠。

A.涉及纠纷事件

B.与调解有关

C.与当事人有关

D.无论什

E.涉及当事人

题型:选择题

患者,男性,25岁。突然发冷,右上腹痛,呕吐,气急,咳嗽,咳铁锈色痰,四肢厥冷,轻度黄疸,口唇发绀,血压9.1/5.2kPa(70/40mmHg),心率130次/分,律齐,最可能的诊断是并发胃穿孔。

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