传染源是指() A.病原体己在体内繁殖并能将其排出体外的动物和人 B.被病原体污染的

题型:单项选择题

问题:

传染源是指()

A.病原体己在体内繁殖并能将其排出体外的动物和人

B.被病原体污染的食物和水

C.带有病原体的节肢动物

D.带有病原体的血液、体液和血制品

E.被病原体污染的土壤

考点:福建住院医师儿科传染性及寄生虫疾病传染性及寄生虫疾病题库
题型:单项选择题
836+164=351-42=25×4=72÷8=
0×123=
3
5
-
1
5
=
1-
2
7
=
5×7+5=
16÷4-4=8-6÷2=
题型:单项选择题

个人投资者在证券经纪商处开立证券交易结算资金账户时,必须提交( )。

A.工作单位证明

B.本人身份证

C.银行存款账户证明

D.证券账户卡

题型:单项选择题

There was a big sea bird that was very beautiful. One day, the sea bird (1) to a country and stayed outside of a palace. The Emperor asked his men to bring it to the palace. Then he said," As a (2) for the sea bird, we’ll set up the band and get the best food and wine ready for it. "(3) they played the best music for the sea bird, but it looked (4) . The Emperor introduced the most delicious food and best wine and asked the bird to have them. But the sea bird (5) After three days without eating or drinking, the sea bird (6)  .The Emperor said (7) , "Why didn’t you eat I gave you all of the (8) !"The story tells us that what some people believe to be the best music and the best food aren’t so for (9) . Feed a bird according to a bird’s wants, not a person’s. The (10) "Do to others as you would have others do to you. " is never really suitable or right.

第(1)空应选择()

A.ran

B.walked

C.flew

D.moved

题型:单项选择题

已知硝酸钾的溶解度受温度影响较大,且它的溶解度随温度的升高而增大.如图所示,将浓硫酸缓缓倒入盛有水的烧杯中,烧杯中放置了盛有某温度下与少量硝酸钾晶体共存的饱和硝酸钾溶液,并用玻璃棒不断搅拌,此时可看到 _________ ,这是因为 _________

题型:单项选择题

首次用实验验证“爱因斯坦质能方程”的核反应方程是:

 73
Li+
 11
H→K
 42
He,已知mLi=7.0160u,mH=1.0078u,mHe=4.0026u,则该核反应方程中的K值和质量亏损分别是(  )

A.1 和 4.0212u

B.1 和 2.0056u

C.2 和 0.0186u

D.2 和 1.9970u

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