染色体畸变是染色体()的改变和染色体结构的改变。

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问题:

染色体畸变是染色体()的改变和染色体结构的改变。

考点:生物学动物科学动物科学题库
题型:填空题

2010年4月12日,声势浩大的“绿书签活动”在全国启动,这是中国为配合4月26日“世界知识产权日”而组织的,今年的主题是“加入绿书签,分享正版生活”。可如今盗版现象屡禁不止,不少学生也图便宜,经常去购买盗版书籍、光碟等。

你认为盗版行为有什么危害?(至少三个角度)             

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浇筑混凝土的间歇时间长短与气温无关。( )

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I will have a holiday next week and I can’t decide what to do. I have a lot of work to do         and this would be a good chance       . But I don’t like         the holiday in such a way. I can work at home all the rest of the year.Last year I went       to the mountains .       there was beautiful, but it is too cold this time of a year. And it’s really        far to go for a short holiday. I decide 
    this isn’t a good time to       the mountains.But I      to go somewhere else.Perhaps this would be a good chance to go to the beach(海滨).I like to go for walks       the seashore      the warm sunshine and watch the water. It’s only eight miles away and I could get there       about two hours. After thinking it      ,I am sure that this is a     time for the seashore than      .Oh, here is a letter       Jim. He       he is going to his house in the mountains for the     ,and he      me to go with him.    giving it some more thought, I wrote back to Jim and thanked him for that.
小题1:
A.at homeB.at houseC.in schoolD.in factory
小题2:
A.do itB.doing thatC.to do itD.with that
小题3:
A.to takeB.to spendC.havingD.asking
小题4:
A.the northB.for northC.northD.to north
小题5:
A.NothingB.EverythingC.SomebodyD.Anything
小题6:
A.veryB.enoughC.ratherD.too
小题7:
A.thatB.whatC.whetherD.when
小题8:
A.goB.go toC.go forD.leave
小题9:
A.do wantB.wantedC.shall wantD.was wanting
小题10:
A.onB.byC.besideD.along
小题11:
A.onB.duringC.inD.under
小题12:
A.inB.forC.withD.after
小题13:
A.aboutB.ofC.overD.on
小题14:
A.goodB.fineC.betterD.best
小题15:
A.homeB.the mountainsC.big citiesD.country villages
小题16:
A.forB.toC.fromD.by
小题17:
A.saysB.tellsC.speaksD.talks
小题18:
A.weekendB.holidayC.sundayD.trip
小题19:
A.wantB.wishC.hopesD.asks
小题20:
A.WhenB.WithC.WithoutD.As
题型:填空题

福建省的主要民族是()

A.汉族、畲族

B.汉族、回族

C.汉族、满族

D.汉族、苗族

题型:填空题

关于生理性闭经,正确的有()

A.18岁尚未初潮

B.妊娠期闭经

C.哺乳期闭经

D.绝经期闭经

E.继发性闭经

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