A.变蓝色 B.变深 C.变浅 D.不变

题型:选择题

问题:

A.变蓝色

B.变深

C.变浅

D.不变

考点:弱电解质电离的影响因素弱电解质的电离度弱电解质的电离
题型:选择题

一般送检分离培养含病毒标本的最佳温度为

A.37℃

B.4℃

C.-20℃

D.-70℃

E.25℃

题型:选择题
Chinese space lover Wang Yuan has been chosen as one of the volunteers for the Mars-500 test project.   小题1:   Another five volunteers are all space . They are three Russians, an Italy-Colombian and a Frenchman. They will feel what it's like to travel to Mars without leaving the earth. During the whole process (过程), they are locked up for one and a half years under the condition which is similar to the red planet. So the experiment is called Mare-500.
   小题2:  Although the volunteers won't leave the building, they will feel as if(好像) they are on a real trip to Mars. The most difficult thing is that they will be separated from he people outside.  小题3:  That will be hard. When reporters asked what they would miss most during the 500-day special life, Charles from France said, "For me, it will be mainly my family, the sun and fresh air."
The main task is to study "Man and Environment". It will care about the astronauts' physical
effects and the experience of staying there. 小题4:  So they will have to make decisions by themselves and then report to the earth, and the earth will tell them whether they do the right thing or not.
Each astronaut is preparing for the great challenge. And people are looking forward to the result of the experiment.
A. Everyone will stay and work there alone.
B. For 18 months, they won't see sunsets or sunrises.
C. The Mars-500 test will be in a special building in Moscow.
D. He was very happy to be chosen and will accept the challenge.
 
小题5:According to the passage, which of the following is TRUE?
A.Five space lovers were chosen as volunteers.
B.The Mars-500 test will take place in Paris.
C.The volunteers will face many sorts of difficulties.
D.The Mars-500 test is about a real trip to Mars.
题型:选择题

七大洲中面积最小的是                      洲,四大洋中面积最大的是                       洋。

题型:选择题

社区健康护理诊断的目的不包括()

A.发现社区存在的健康问题

B.明确社区内居民的卫生服务要求

C.收集与社区整体健康状况相关的资料

D.确定社区中需要优先解决的健康问题

E.为实施社区健康护理提供依据

题型:选择题

护士给予风湿性心脏瓣膜病患者的护理措施不妥的是()

A.风湿活动时应卧床休息

B.病变关节应制动、保暖

C.病变关节避免受压和碰撞

D.关节疼痛部位禁止热敷或按摩

E.必要时可口服甾体类抗炎药止痛

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