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【单选题】
下列说法正确的是 ①光合作用一定在叶绿体中进行 ②有氧呼吸一定在线粒体中进行 ③没有细胞结构的生物一定是原核生物 ④人从25摄氏度环境中到零度环境中耗氧量会减少 ⑤生长素对植物生长一定有促进作用 ⑥ATP可以在生物体内大量储存。所以不需要时刻合成 [     ]
A.
①②③④⑤⑥
B.
①③④⑥
C.
①②③⑤
D.
全都不对
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【简答题】The Elysee Palace in France enjoys equal popularity in the world with the Buckingham Palace in the United Kingdom, the Kremlin in Russia as well as the White House in the U. S. It is the residence of ...
【单选题】关于手术进行中的无菌原则的叙述,哪项不对
A.
不可在手术人员背后传递器械
B.
手术台平面以下为污染区
C.
术中被肠内容物污染的器械必需冲洗后再用
D.
皮肤切开前及缝合之前均要用 70 %乙醇消毒皮肤一次
【简答题】The fact that the chance of identical twins both developing schizophrenia is higher than that of fraternal twins confirms the influence of______.
【单选题】Traditional Chinese sports are similar to the Western sports _______ both are meant to improve people’s health.
A.
that
B.
in which
C.
in that
D.
不填
【简答题】线性移不变系统是因果系统的充分必要条件是()。
【单选题】线性移不变系统是稳定系统的充分必要条件是()
A.
因果系统
B.
单位抽样响应绝对可和
C.
输入序列有界
D.
输入序列绝对可和
【单选题】线性时不变系统是因果系统的充分必要条件是:
A.
h(n)=1, n<0
B.
h(n)=1, n>0
C.
h(n)=0, n<0
D.
h(n)=0, n>0
【单选题】The blurring of working womens roles refers to the fact that______.
A.
they are both bread winners and housewives
B.
their home is also a place for kicking back
C.
there is often much housework left behind
D.
it is difficult for them to leave their office
【简答题】线性移不变系统为因果系统的充分必要条件是_____。
【判断题】公民科学,是新近随着新技术的发展出现的研究方法
A.
正确
B.
错误
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