下列关于新制氯水与久置氯水的说法，错误的是（） A．新制_爱下问搜题

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问题选择题

下列关于新制氯水与久置氯水的说法，错误的是（　　）

A．新制的氯水呈黄绿色，久置的氯水颜色较浅

B．新制的氯水漂白作用强，久置的氯水漂白作用很弱

C．新制的氯水含氯分子多，久置的氯水含氯分子少

D．新制的氯水中无氯离子，久置的氯水中则含氯离子

答案

A．因新制氯水中含氯气，所以新制氯水呈黄绿色，久置氯水中氯气分子减少，所以颜色较浅，故A正确；

B．新制氯水中含次氯酸，次氯酸具有强氧化性，具有漂白作用，久置氯水中次氯酸少，漂白作用很弱，故B正确；

C．新制氯水中Cl₂多，久置氯水随着反应进行，氯气分子参与反应，最终含量很少，故C正确；

D．新制氯水和久置氯水都含氯离子，故D错误．

故选D．

完形填空

Eleven-year-old Angela was attacked by a rare   21  affecting her nerve system. She was unable to walk and her movement was    22  in other ways as well. The doctors did not hold much    23   of her ever recovering from this illness. They    24 she'd spend the rest of her life in a wheelchair.They said that few, if any, were able to come back to    25 after suffering from this disease .The little girl was   26 . There, lying in her hospital bed, she would swear that she was   27  going to be walking again one day.
She was moved to a specialized    28 hospital in the San Francisco Bay area. All   29 that could be applied to her case were used. The doctors were moved by her undefeatable spirit. They taught her about imaging about seeing herself walking. If it would do   30 else, it would at least give her hope and something   31 to do in the long waking hours in her bed. Angela would work as hard as possible in physical treatments, and in exercise sessions. But she worked just as hard lying there faithfully doing her   32  , visualizing herself moving, moving, moving!
One day, 33 she was attempting, with all her might, to imagine her legs moving again, it seemed as though something 34  happened: the bed moved! It began to move around the room! She    35 out, "Look what I'm doing! Look! Look! I can do it”. I moved! I moved!"
Of course, at this very moment everyone else in the hospital was screaming, too, and running to a   36 place. People were screaming, equipment was  37 and glass was breaking. You see, it was the terrible San Francisco earthquake. 38 don't tell that to Angela. She    39  that she did it.
And now only a few years later, she's back in school, on her own   40  . No crutches, no wheelchair. You see, anyone who can shake the earth between San Francisco and Oakland can defeat a little disease, can't they?

B．approximately

B．instructions

B．interesting

D．appropriate

C．expectation

D．performance

A．accelerating

单项选择题

Ⅲ度房室传导阻滞及病窦的患者，最好的治疗是（）

A.异丙肾上腺素

B.阿托品

C.去氧肾上腺素

D.心脏起搏

E.利多卡因