在使触电者脱离电源的抢救过程中,应注意() A.避免给触电者造成其他伤害 B.抢救者

题型:多项选择题

问题:

在使触电者脱离电源的抢救过程中,应注意()

A.避免给触电者造成其他伤害

B.抢救者不必注意自身安全

C.采取适当的安全措施

D.严格保持自己与触电者的绝缘

E.未断离电源前决不能用手牵拉触电者

考点:护理正副高急救护理(医学高级)医学高级急救护理(副高)特训密卷六
题型:多项选择题
在平面直角坐标系中,点P(
3
,-1)到原点的距离是(  )
A.1B.
3
C.4
3
D.2
题型:多项选择题

由于群桩效应,复合桩基的竖向承载力与其基桩作为单桩单独工作的竖向承载力之和的比值为( )。

A.>1或≤1

B.=1

C.>1

D.<1

题型:多项选择题

There were times it was only schoolchildren who felt sick before they got their grades. But now teachers in Germany are scared, too, as they are being graded by their students.

Many teachers are opposed to it. They don’t mind being evaluated(评价). But they are upset because the results are then being posted on the Internet and accessible to millions of Internet users. On the website www.spickmich.deduring the past four months students have posted evaluation of 100,000 teachers.

The teachers are graded on categories such as “motivated”, “good instruction”, “easy examinations”, or even “sexy”. Many teachers think that their privacy has been violated.

The creators of the website say that the students are only being offered the chance to provide teachers with some feedback about their classroom instruction. Bernd Dicks, who founded the website with three friends, says that the students are largely quite satisfied with their teachers. On a grading scale of one to six, the teachers’ average grade is 2.7 and it has been improving lately. He often says the impression is that students are bullying(威吓) their teachers. But there is also bullying of the students by teachers.

“Teachers must also learn to live with criticism,” he added. But still, the website is not totally immune from manipulation(操纵), as one teacher near the northern city of Hanover recently proved. He registered himself on the website as a student and then rated his own teaching colleagues highly. Within a few days, seven of his colleagues were listed in the top 10 ranking of Germany’s best teachers.

小题1:Many teachers are opposed to the website because_____.

A.their privacy has been violated

B.they are afraid of being assessed

C.their evaluations are unfair

D.the results are not satisfying小题2:We can infer that the founder of the website intended to _____.

A.get the students to know their teachers better

B.conduct a survey on teachers’ performance

C.help the teachers to improve their teaching

D.change the teachers’ ways of giving instructions小题3:From what the teacher in Hanover did, we can infer _____.

A.he intended to help his colleague

B.there was some disadvantage of the website

C.his colleagues were more popular than him

D.he wanted to know how he was evaluated

题型:多项选择题

(14分)有如下化学反应:2A(g)+B(g)2C(g),△H<0。

(1)若将4 mol A和2 mol B在2 L的容器中混合,经2 s后测得C的浓度为0.6 mol/L,用物质A表示的平均反应速率为____________________________;2s时物质B的浓度为____________________;

(2)若将4 mol A和2 mol B加入体积不变的容器中,一定温度下达到平衡状态,测得气体总物质的量为4.2 mol。此时,混合气体中C的体积分数为_____________;若再通入少量B气体,体系中A的物质的量_________(填“增大”、“减小”或“不变”),若要使A的物质的量再达到与原平衡状态相同,可采取的措施有_            。(填一种措施即可)

(3)下图是一定条件下该反应过程中,体系内各物质浓度的变化情况。t2时曲线发生变化的原因是_______________________________ ,若在t4时将B的浓度增大0.l mol·L1,在t5时刻到达新平衡。请在图中画出各物质浓度的变化情况。

题型:多项选择题

下列哪项CT征象对诊断视网膜母细胞瘤最有价值()

A.眼球内肿块

B.眼球内肿块伴出血

C.眼球内肿块伴坏死

D.眼球内肿块伴钙化

E.眼球内肿块向颅内扩展

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