【名词&注释】
遗传信息(genetic information)、花芽分化(flower bud differentiation)、禾本科植物(grass)、石灰岩(limestone)、原子量(atomic weight)、外力作用(exogenous process)、双层膜结构(double membrane structure)、标准状况(standard condition)、克利斯提尼(cleisthenes)、叶绿体类囊体(chloroplast-thylakoid)
[单选题]禾本科植物的幼穗分化就是花芽分化而形成花序的过程。( )
A. 正确
B. 错误
查看答案&解析
举一反三：
[单选题]It can be learned from the passage that parents should ________.
A. encourage children to paint
B. value friendship among children
C. discover the hidden talent in children
D. protect rather than destroy children’s dreams
[单选题]设NA为阿伏伽德罗常数，下列叙述正确的是
A. 24g镁的原子量最外层电子数为NA B． 1L0.1mol·L-1乙酸溶液中H+数为0.1NA
B. 1mol甲烷分子所含质子数为10NA D． 标准状况(standard condition)下，22.4L乙醇的分子数为NA
[单选题]希脯历史学家希罗多德说，克利斯提尼(cleisthenes)“领着人民参与政治”。 克利斯提尼(cleisthenes)改革中符合这一评述的是①按财产多寡划分社会等级
A. ②用10个地域部落取代原来4个血缘部落
B. ③设立五百人会议
C. ④向公民发放“喜剧津贴”
D. ①②
E. ②③
F. ③④
G. ①④
[单选题]两地地貌形成主导外力作用与岩石组合正确的是
A. 甲——物理风化－风力侵蚀－砂岩B．乙——物理风化－风力侵蚀－砂岩
B. 甲——化学风化－流水侵蚀－石灰岩 D．乙——化学风化－流水侵蚀－石灰岩
[单选题]What was the normal price of the T-shirt?
A. ＄15
B. ＄30
C. ＄50
[单选题]根据下面内容，回答 60 ~63 题： BComputer programmer David Jones earns￡35,000 a year designing new computer games， yet he cannot find a bank ready to let him have a credit card(信用卡)．Instead，he has been told to wait another two years，until he is 18．The 16-year-old works for a small firm in Liverpool， where the problem of most young people of his age is finding a job.David’s firm releases(推出) two new games for the fast growing computer market each month.But David’s biggest headache is what to do with his money．Even though he earns a lot, he cannot drive a car, take out a mortgage(抵押贷款)，or get credit cards．David got his job with the Liverpool-based company four months ago，a year after leaving school with six O-levels and working for a time in a computer shop．“I got the job because the people who run the firm knew
A. David spends some of his money on records and clothes，and gives his mother 50 pounds a week．But most of his spare time is spent working.
B. “But I had been studying it in books and magazines for four years in my spare time．I knew what I wanted to do and never considered staying on at school．Most people in this business are fairly young， anyway.”David added：“l would like to earn a million and I suppose early retirement(退休)is a possibility．You never know when the market might disappear．”
C. 第5题：In what way is David different from people of his age?
D. He often goes out with friends.
E. He lives with his mother.
F. He has a handsome income.
G. He graduated：with six O-levels.
[单选题]下列有关线粒体和叶绿体的叙述，错误的是
A. 线粒体和叶绿体携带的遗传信息可以表达出来
B. 线粒体和叶绿体为双层膜结构(double membrane structure)，其内膜中酶的种类相同
C. 线粒体内膜向内折叠形成嵴，叶绿体类囊体(chloroplast-thylakoid)堆叠形成基粒
D. 蓝藻没有叶绿体也能进行光合作用
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