女性,23岁。诊断急性病毒性心肌炎,心律失常,三度AVB。下列措施首选哪一项 A.安

题型:单项选择题

问题:

女性,23岁。诊断急性病毒性心肌炎,心律失常,三度AVB。

下列措施首选哪一项

A.安置除颤式起搏器

B.射频消融术

C.持续静脉滴注阿托品

D.安置临时心室起搏器

考点:普通考研西医综合西医综合
题型:单项选择题

I live in a small town near Xing'an in Guilin. You can't see it on the map of China, because it is too small. The air here is very fresh(清新的).

There are not many tall buildings in our town. The tallest building is in our school. There are five hundred students and twenty-five teachers in our school.

In the front of the school, there is a playground. I often play basketball with my classmates on it. There is a little garden behind our school. And we can grow (种植) beautiful flowers and plant trees there. Next to the garden, there is an orange orchard(果园). You can hear birds singing everywhere.

There is a river not far from our school. In summer, we usually go swimming with our teachers in it. We study Chinese, English, Maths and other subjects at school. The teachers are very nice. We love our school.

Do you like my town? I hope you can come here to have a look.

小题1:The writer lives_______.

A.in a small town

B.in the city

C.in the country

D.in a tall building小题2:There is_______in the front of our school.

A.a river

B.an orange orchard

C.a playground

D.a garden小题3:How many students are there in the school?

A.4025

B.500

C.245

D.425小题4:Which of the following is TRUE?

A.There are many tall building in the town

B.People can hear students singing everywhere.

C.There is a river in the school

D.Behind the school there is a garden

题型:单项选择题

对货币运行产生影响的部门是()()()()。

题型:单项选择题

下列产褥期疾病属于产褥感染的是:

A.急性子宫颈炎

B.急性子宫内膜炎

C.急性子宫肌炎

D.急性输卵管炎

E.急性盆腔蜂窝组织炎

题型:单项选择题
如图所示,在x轴上方存在着垂直于纸面向里、磁感应强度为B的匀强磁场,一个不计重力的带电粒子从坐标原点O处以速度v进入磁场,粒子进人磁场时的速度方向垂直于磁场且与x轴正方向成120°角,若粒子穿过y轴正半轴后在磁场中到x轴的最大距离为a,则该粒子的比荷和所带电荷的正负是(  )

A.,正电荷

B.,正电荷

C.,负电荷

D.,负电荷

题型:单项选择题

某钢筋混凝土单层单跨厂房(有吊车,屋面为刚性屋盖),其排架柱的上柱Hu=3.3m,下柱Hl=11.5m,上、下柱截面尺寸如下图所示。当考虑横向水平地震作用组合时,在排架方向内力组合的最不利设计值为:上柱M=110kN·m,N=250kN;下柱M=580kN·m,N=730kN。混凝土强度等级为C30,纵向受力钢筋采用HRB335级钢筋();对称配筋,as=a′u=40mm。上柱截面下柱截面图

上柱截面及配筋如下图所示。若该柱采用预制,在进行吊装阶段裂缝宽度验算时,已知上柱柱底截面由柱自重产生的弯矩标准值Mk=28.3kN·m。试问,该上柱柱底截面受拉区纵向钢筋的应力σsk(N/mm2),应与下列何项数值最为接近?()提示:按翻身起吊验算。

A.81

B.93

C.119

D.140

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