与现代生物进化理论不相符的描述是() A.基因突变、染色体变异和基因重组都是随机的、

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问题:

与现代生物进化理论不相符的描述是()

A.基因突变、染色体变异和基因重组都是随机的、不定向的

B.种群间由于地理上的障碍不能发生基因交流的现象叫生殖隔离

C.新物种的形成意味着生物能够以新的方式利用环境条件

D.表现型与环境相适应的个体有更多的机会产生后代而改变种群的基因频率

考点:高中生物生物的进化生物的进化题库
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Do you always agree with your teacher? Sometimes you might have a different a  小题1:   to a Maths problem. Or maybe they scold(责备) you when you don’t think you did anything w  小题2:  .What do you do then? A story on sina.com said that more and more students choose to s  小题3: out and sometimes even shout(喊叫) at their teachers. It’s i  小题4:  for students to say what they think. In the past, few Chinese students dared(敢于) to speak d  小题5:   to their teacher. It was an unwritten rule(不成文的规定) that what the teachers said is always right. But now students are b  小题6:   to think more of themselves and dare to say what they think right. But students should choose the right way to speak out. We should respect(尊重) teachers. They are older than you and know more things. So, never use i  小题7:   words when speaking to them. And don’t make them u  小题8:   when you don’t agree with them. Try to find the right time to talk to your teacher. For e  小题9:  , talk about the problem after class. R  小题10:  to talk about it in a friendly way.

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焦炉煤气中属于可燃成分的有H2,CO,CH4,O2,CmHn等。

题型:单项选择题

未取得《工程监理企业资质证书》承担监理业务的,予以取缔,处合同约定的监理酬金 ( )的罚款;有违法所得的,予以没收。

A.1倍

B.1倍以上2倍以下

C.3倍

D.1倍以上3倍以下

题型:单项选择题

假设某开放式基金的单位资产净值为1.8元,申购手续费率为4%,赎回手续费率是3%,则该基金的申购价和赎回价分别为( )元。

A.1.8;1.8

B.1.8×(1+4%);1.8×(1+3%)

C.1.8×(1+4%);1.8×(1-3%)

D.1.8×(1+4%);1.8

题型:单项选择题

已82岁高龄的袁隆平面对辉煌、荣耀、名利没有任何改变,从播种到收获,他依然风尘仆仆地骑着摩托车去试验田;从春夏到秋冬,他依然分秒必争的察看着育种基地。下列说法与袁隆平的精神相同的是()

①克勤于邦,克俭于家

②夸父逐日,大禹治水

③天下兴亡,匹夫有责

④反对霸权,崇尚和平

A.①②④

B.②③④

C.①②③

D.①③④

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