问题
单项选择题
下列表述中，不属于阴离子转运系统的是
A．需要能量，可受硝基苯酚(DN的抑制
B．可从低浓度向高反方向转运，甚至有的药物只需通过一次肾血液循环，就可将药物几乎全部从血浆中清除
C．通过高浓度向低浓度被动转运
D．通过该机制转运的有机酸有竞争性抑制
E．如逐渐增高血浆中浓度时，药物转运量将达恒定值，即为肾小管分泌的饱和转运量
答案
参考答案：C
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下列表述中，不属于阴离子转运系统的是
A．需要能量，可受硝基苯酚(DN的抑制
B．可从低浓度向高反方向转运，甚至有的药物只需通过一次肾血液循环，就可将药物几乎全部从血浆中清除
C．通过高浓度向低浓度被动转运
D．通过该机制转运的有机酸有竞争性抑制
E．如逐渐增高血浆中浓度时，药物转运量将达恒定值，即为肾小管分泌的饱和转运量
参考答案：C
For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing. Mice will probably 1 sing their way to any concert, but researchers in the United States have found 2 that mice do, 3 , sing. Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 4 special equipment. To find out whether mice put such sounds together in song-like 5 , the researchers recorded the sounds of 1 mice. Using computer 6 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second. The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 7 song. But not all scientists are 8 _ that what the mice are doing is 9 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 10 why the mice sing.
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