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【单选题】
DNA纳米技术是利用DNA的分子性质，如自组装的特性，构建出可操控的新型纳米尺度聚集体或超分子结构。近年来，我国科研人员在DNA纳米技术研究方面不断取得新突破。上海世博会期间，科研人员把DNA链像搭积木一样组装拼接，设计出三维DNA结构——世博会中国馆，实现了二维DNA图形到三维DNA结构的突破。以上事实表明人类能够（） ①改变自然物的具体形态而显示其实践的能动性 ②根据自己的意愿来决定实践中变革的客观事物 ③发挥主观能动性改变规律以造福人类 ④进行创新以实现技术的重大突破
A.
①②
B.
①③
C.
②③
D.
①④
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参考答案：
举一反三
【单选题】应变 γ x y 的物理含义是原微元的直角在变形后
A.
与x轴的夹角变化
B.
与y轴的夹角变化
C.
与x及y轴的总夹角变化
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【单选题】下列哪项不是传动系的组成元件
A.
离合器
B.
变速器
C.
车轮
D.
差速器
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【单选题】According to the passage, which of the following marriages is usually counted as an international one?
A.
A Canadian man marries a Canadian woman in New Zealand.
B.
A daughter of Japanese immigrants in the U. S. marries a Japanese citizen.
C.
A second-generation Turkish German marries a native German.
D.
A son of Indian immigrants in Britain marries an English woman.
查看完整题目与答案
【判断题】Excel中选定区域的右下角有一个小黑方块,称之为“填充柄”。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one is counted in US GDP?
A.
The gourmet meals produced by a fine home chef
B.
The purchase of a plot of land
C.
The purchase of an original Rembrandt painting
D.
Profits earned by British factory on production in American
查看完整题目与答案
【单选题】下列哪项不是传动系的组成元件（）。
A.
离台器
B.
变速器
C.
车轮
D.
差速
查看完整题目与答案
【单选题】患者女性,46岁,教师,近半年来声音嘶哑,休息后缓解,近2个月出现持续性声音嘶哑。电子喉镜检查:双声带水肿,呈鱼腹样改变,基底较宽,运动正常,但闭合时双声带后方可见缝隙,最可能的诊断是:
A.
声带息肉
B.
声带小结
C.
慢性喉炎
D.
声带息肉样变
E.
急性喉炎
查看完整题目与答案
【单选题】如果在学前儿童时期,甲状腺 激素 分泌不足,会得( )。
A.
呆小症
B.
甲亢
C.
侏儒症
D.
巨人症
查看完整题目与答案
【单选题】1 Which of the following is true according to the passage?
A.
a. There are one million millionaires in the world today.
B.
b. A millionaire’s house should not be counted with his financial assets.
C.
c. Most millionaires inherited their wealth from their parents.
查看完整题目与答案
【多选题】Which of the following is the correct English equivalent of "失业人员都应该得到政府的帮助。" There are may be more than one correct sentencce.
A.
Anyone who has lost his job counts as deserving government help.
B.
Any unemployed person counts as deserving government help.
C.
Any unemployed people counts as deserving government help.
D.
Anyone who has lost his job should be counted as deserving government help.
查看完整题目与答案
相关题目：
【单选题】应变 γ x y 的物理含义是原微元的直角在变形后
A.
与x轴的夹角变化
B.
与y轴的夹角变化
C.
与x及y轴的总夹角变化
查看完整题目与答案
【单选题】下列哪项不是传动系的组成元件
A.
离合器
B.
变速器
C.
车轮
D.
差速器
查看完整题目与答案
【单选题】According to the passage, which of the following marriages is usually counted as an international one?
A.
A Canadian man marries a Canadian woman in New Zealand.
B.
A daughter of Japanese immigrants in the U. S. marries a Japanese citizen.
C.
A second-generation Turkish German marries a native German.
D.
A son of Indian immigrants in Britain marries an English woman.
查看完整题目与答案
【判断题】Excel中选定区域的右下角有一个小黑方块,称之为“填充柄”。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one is counted in US GDP?
A.
The gourmet meals produced by a fine home chef
B.
The purchase of a plot of land
C.
The purchase of an original Rembrandt painting
D.
Profits earned by British factory on production in American
查看完整题目与答案
【单选题】下列哪项不是传动系的组成元件（）。
A.
离台器
B.
变速器
C.
车轮
D.
差速
查看完整题目与答案
【单选题】患者女性,46岁,教师,近半年来声音嘶哑,休息后缓解,近2个月出现持续性声音嘶哑。电子喉镜检查:双声带水肿,呈鱼腹样改变,基底较宽,运动正常,但闭合时双声带后方可见缝隙,最可能的诊断是:
A.
声带息肉
B.
声带小结
C.
慢性喉炎
D.
声带息肉样变
E.
急性喉炎
查看完整题目与答案
【单选题】如果在学前儿童时期,甲状腺 激素 分泌不足,会得( )。
A.
呆小症
B.
甲亢
C.
侏儒症
D.
巨人症
查看完整题目与答案
【单选题】1 Which of the following is true according to the passage?
A.
a. There are one million millionaires in the world today.
B.
b. A millionaire’s house should not be counted with his financial assets.
C.
c. Most millionaires inherited their wealth from their parents.
查看完整题目与答案
【多选题】Which of the following is the correct English equivalent of "失业人员都应该得到政府的帮助。" There are may be more than one correct sentencce.
A.
Anyone who has lost his job counts as deserving government help.
B.
Any unemployed person counts as deserving government help.
C.
Any unemployed people counts as deserving government help.
D.
Anyone who has lost his job should be counted as deserving government help.
查看完整题目与答案
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