根据下列仪器回答问题：（1）C的仪器名称是：______，F的仪器名称是：_

发布时间：2017-05-22 01:15 │ 来源：www.tikuol.com

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问题：

根据下列仪器回答问题：

（1）C的仪器名称是：______，F的仪器名称是：______

（2）实验室用加热高锰酸钾的方法制备并用排水集气法收集氧气，字母序号）．______；发生反应的化学方程式为：______气体收集完毕，应进行的操作是______．

（3）写出实验室制二氧化碳的化学方程式：______，你所组装的上述制取氧气的装置______ （填“能”或“不能”）用于实验室制取二氧化碳，理由是______．

考点：氧气的制取和收集二氧化碳的制取和收集

题型：问答题

下列数中最大的是______。

A．1101101

B．110D

C．6CH

D．1570

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下列关于休克患者预防急性肾衰的措施中不正确的是( )。

A．及时纠正低血容量性休克，避免肾缺血

B．治疗休克时不宜使用易引起肾血管收缩的药物

C．对有溶血倾向的患者应保持肾小管通畅、碱化尿液，避免肾小管损害

D．休克合并DIC时，要及时应用肝素治疗

E．患者只要出现尿量减少时，要及时使用利尿剂

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某女，49岁。上腹部节律性疼痛10余年。现胃脘部隐痛，似饥而不欲食，口干不欲饮，心烦，纳差，手足心热，大便于，舌红，苔黄少津，脉细数。查胃镜示：胃溃疡。治宜

A．柴胡疏肝散合五磨饮子
B．化肝煎合左金丸
C．黄芪健中汤加减
D．一贯煎合芍药甘草汤
E．活络效灵丹合丹参饮

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导体对电流的阻碍作用叫（）。

A.电导

B.电阻

C.电抗

D.电流

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Questions 81-90 are based on the following passage.
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too.
The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding.
Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them.
Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation.
To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack.

Which of the following does the writer explain

A．Neurotoxins.

B．Microscopic organisms.

C．Predators.

D．Fish walks.

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