影响结核性脑膜炎预后的主要因素如下,哪项除外() A.治疗晚、治疗不当 B.原发

题型:单项选择题

问题:

影响结核性脑膜炎预后的主要因素如下,哪项除外()

A.治疗晚、治疗不当

B.原发耐药菌株感染

C.小婴儿病死率高

D.合并有肺门结核者

E.晚期、脑膜脑炎型预后最差

考点:儿内科(医学高级)儿内科综合练习儿内科综合练习题库
题型:单项选择题

已知命题p:存在x∈R,使tanx=1,命题q:x2-3x+2<0的解集是{x|1<x<2},下列结论:

①命题“p∧q”是真命题;

②命题“p∧¬q”是假命题;

③命题“¬p∨q”是真命题;

④命题“¬p∨¬q”是假命题.

其中正确的是(  )

A.②③

B.①②④

C.①③④

D.①②③④

题型:单项选择题

用NA表示阿伏加德罗常数的数值,下列说法正确的是[ ]

A.标准状况下,11.2 L H2O所含的水分子数目为0.5NA

B.16 g O2和O3的混合气体中所含的氧原子数目为NA

C.1. 00 mol·L-1 Na2CO3溶液中所含Na+的数目为2NA

D.0.1 mol Zn与含0.1 mol HCl的盐酸溶液充分反应,转移电子数目为0.2NA

题型:单项选择题

There was great excitement on the planet of Venus (金星) . Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.

The satellite was directed into an area known as Manhattan, named after the great Venusian astronomer Professor. Manhattan, who first discovered it with his telescope 20000 light years ago.

Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information as to feasibility (可行性) of a manned flying saucer landing on Earth. A press conference was held at the Venus Institute of Technology.

"We have come to the conclusion, based on last week's satellite landing," Prof. Zog said, "that there is no life on Earth."

"How do you know this?" the science reporter of the Venus Evening Star asked.

"For one thing, Earth's surface in the area of Manhattan is made up of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive."

"What does this mean as far as our flying saucer program is concerned?"

"We shall have to take our own oxygen with us, which means a much heavier flying saucer than originally planned."

"Are there any other dangers that you discovered in your studies?"

"Take a look at this photo. You see this dark black cloud hovering (盘旋) over the surface of Earth? We don't know what it is made of, but it could give us a lot of trouble and we shall have further tests before we send a Venus Being there."

"Over here you will notice what seems to be a river, but the satellite findings indicates it is polluted and the water is unfit to drink. This means we shall have to carry our own water, which will add even greater weight to the saucer."

"If all you say is true, won't this set back the flying saucer program several years?"

"Yes, but we shall continue as soon as the Grubstart gives us the added funds(资金)." Profession. Zog replied.

小题1:According to the passage, the Venusian scientists succeeded in getting important information about _____.

A.the feasibility of landing a satellite on Earth

B.the possibility of making a first-rate flying saucer

C.the feasibility of sending a Venus Being to Earth

D.the possibility of directing a flying saucer into Manhattan小题2:Why will the Venusian have to take their own oxygen with them when they carry out their flying saucer program because _____. 

A.they need it in their way to the planet of Earth

B.the Earth's atmosphere is filled with deadly gases

C.there is a low level of oxygen for Venusians

D.there is no air on the planet of Earth小题3:It can be inferred from the passage that ______. 

A.landing a manned flying saucer on Earth will be carried out soon

B.Venusians will land on Earth to help to stop serious pollution

C.it’s unnecessary to land a manned flying saucer on Earth at present

D.pollution on Earth makes it impossible for Venusians to survive there小题4:Where can you probably read such a passage?. 

A.In a popular magazine.

B.In a fairy tale.

C.In an observation journal

D.In science fiction

题型:单项选择题

弹簧振子在光滑水平面上作简谐振动时,弹性力在半个周期内所作的功为()。

A.kA2

B.(1/2)kA2

C.(1/4)kA2

D.0

题型:单项选择题

搭设脚手架人员必须戴安全帽、()、穿防滑鞋

更多题库