题干

小王进行1500m跑步,大量出汗且锻炼后肌肉感到酸痛,但休息一段时间后恢复正常.下列有关该调节过程的叙述错误的是(  )

A:小王体内细胞外液的渗透压主要与Na+和Cl﹣有关

B:小王感到肌肉酸痛的原因是肌细胞无氧呼吸,引起乳酸积累

C:小王维持内环境pH稳定起主要作用的是HCO3﹣、HPO42﹣

D:小王在1500 m跑步过程中,肌肉所需的能量主要由无氧呼吸提供

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答案(点此获取答案解析)

D

同类题2

根据给出的首字母,补全短文。

    It's not easy to let young people accept the ways of the old. It's becoming e____ more difficult in the face of new technologies. So officers gathered in Wuhan, Hubei Province that is proved to be good at m____ children interested in tradition. They shared some lessons. As we all know, many students know little about traditional things. Officers d____ how to make local operas popular in elementary and middle schools. Officers also agreed that every student should get the chance to w____ a traditional opera show for free every year.

    The work of the theatre was divided into three p____: speech, teaching and performance. By the end of November, about 146 e____ of these kinds were held. Opera artists are often invited to schools to communicate with students and teachers. Traditional opera lessons are t____ in more than 80 percent of its elementary and middle schools. More than 6,600 opera shows were performed at schools that year, and that was h____ praised by students and parents.

    In this way students can have a taste of the traditional beauty of China. "At first I was afraid these events could be a distract (分心) from study. Now I r____ that our children have learned a lot from them," said one parent of No.71 Middle School. One of the officers said o____ parts of the country could learn some lessons from Hubei Province's experiences. They hope students all over China will have the chance to learn the art of traditional operas by the end of 2018.