问题
选择题
下列关于细胞结构和功能的叙述中，错误的是[ ]
A．根尖分生区细胞和叶肉细胞不是都有细胞周期，但化学成分却不断更新
B．抑制膜上载体活性或影响线粒体功能的毒素都会阻碍根细胞吸收矿质离子
C．只有含叶绿体的细胞才能进行同化作用
D．乳酸菌、酵母菌都含有核糖体和DNA
答案
答案：C
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下列关于细胞结构和功能的叙述中，错误的是[ ]
A．根尖分生区细胞和叶肉细胞不是都有细胞周期，但化学成分却不断更新
B．抑制膜上载体活性或影响线粒体功能的毒素都会阻碍根细胞吸收矿质离子
C．只有含叶绿体的细胞才能进行同化作用
D．乳酸菌、酵母菌都含有核糖体和DNA
答案：C
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| What separates me from everyone else? The difference is not what clothes I wear or the music I listen to, but what I feel 1 . Ever since I was young, I have loved professional wrestling. As I grew older, my friends laughed at me for following what was called a "man's soap opera." So, I put my love for wrestling on the shelf. It was not until freshman (新生) year that I 2 I wasn't being myself. That year, I tried many new things and 3 . In my town, football was the sport, so I decided to play football, thinking it might give me a head start in popularity. The team started with forty-eight athletes (运动 员). 4 , there were fourteen of us 5 . I continued to practise not because I liked it, 6 because I am not a quitter (懦夫). That long season taught me a lesson: I wasn't a football player. More 7 , it taught me to be myself. After that season, I went back to being a wrestling fan. I came across a well-known saying:"Don't Dream It. Be It." When I referred to it, my friend Dan 8 my idea. "What if we build a wrestling ring?" we asked. The following weekend, we met at his house. We saw our dream in a pile in his backyard. We worked from dawn to dusk to build our great project. Our hard work finally brought us success. We had a real ring. We decided to hold an "event." We 9 for hours, trying to 10 every aspect (方面)of our wrestling ability. The date was May 24th. To our 11 , about one hundred friends and fans 12 to support us. It was the most important night of my life and a complete success. Since that time, we have held five shows with as many as two hundred and fifty people 13 . We continued to live this dream and we succeeded. As my senior year comes to an end, I'll remember all of my high school memories. But what will value most is the memory that I did something I loved, no matter what everyone said or thought, I 14 the goal and lived my 15 . | ||||
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