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(1)若图甲是癌细胞的细胞膜,则膜上含量较正常细胞减少的物质是[ ] 。
(2)若图甲是线粒体膜,b和c过程运输的气体分别是 。b、c运输方式符合图 所表示的物质运输曲线。
(3)若图甲表示人体红细胞膜,则表示Na+、K+运输的分别是图中 。Na+、K+的运输方式符合图 所示曲线。
(4)已知红细胞吸收葡萄糖是协助扩散,而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖,请设计实验加以确定。
①实验步骤:
第一步:取甲、乙两组生理状况相同的小肠上皮细胞,放入适宜浓度的含有葡萄糖的培养液中。
第二步:甲组细胞给予正常的呼吸条件, 。
第三步: 。
②预测实验结果并分析:
a.若甲、乙两组细胞对葡萄糖的吸收速率基本相同,则 。
b. 。 查看习题详情和答案>>
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阅读下面短文,根据短文内容完成下列各题。
What is the top hit single of 2006? It′s "Don′t Wanna Grow Up "!
Taiwan girl band S.H.E took home the gold hit award at the 2006 Hong Kong TVB8 Top Chart Awards (金曲榜) last week, with "Don't Wanna Grow Up" from their eighth album "Once Upon A Time".
It′s the first time S.H.E has won the award. The three members, Selina, He be and Ella were all very excited about it. They not only performed the song at the award ceremony, but also offered big hugs (拥抱) when giving awards to their artists.
"Don′t Wanna Grow Up" is a song with light tunes (旋律) and easy lyrics.
It′s music writer Zuo Arian used the tunes from Mozart's Symphony No.40 as the refrain (副歌). That gives the song a very classical feeling.
The song had been quite popular among high school students since it came out. Xiao Xue, a Junior 3 student from Shanghai, said that she often hums the refrain part herself.
"I like the lyrics, too," she said, "I often wish that I could go back to my childhood, when I had enough time to play and didn′t have to worry about all the exams."
S.H.E said that the song also expresses their true feelings. Their rocking success in the past six years has led to the three young girls heavy workloads and forced then to grow up quickly. 〝When we. first, started singing, we were quite relaxed and we had our own musical dreams," said S.H.E. "Don′t Wanna Grow Up′reminds us of those happy times and of our original dreams."
1. Where are the members of S.H.E from?
2. Why does the song "Don't Wanna Grow Up" have a classical feeling?
3. Xiao Xue prefers the refrain part to the lyrics, doesn′t she?
4.将第四段划线句改写成含有定语从句的复合句。
5.对文章最后一句做划线提问.
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