下列说法错误的是
①硝化细菌、霉菌、水绵的细胞含有核糖体、DNA、RNA ②能进行有氧呼吸的细胞一定含有线粒体，含线粒体的细胞每时每刻都在进行有氧呼吸 ③因为绿叶中的色素不吸收绿光，绿光被反射出来，所以叶片呈现绿色 ④细胞分化使各种细胞的遗传物质有所差异，导致细胞的形态和功能各不相同 ⑤蛙红细胞、人脑细胞、洋葱根尖分生区细胞并不都有细胞周期，但这些细胞的化学成分都在不断更新[ ]
A．①②③④
B．②③④⑤
C．②③④
D．②④⑤
答案：C
| 短文改错。 此题要求改正所给短文中的错误。对标有题号的每一行作出判断; 如有错误( 每行只有一个错误) ，则按下列情况改正： 此行多一个词：把多余的词用斜线(\) 划掉，在该行右边横线上写出该词，并也用 斜线划掉。 此行缺一个词：在缺词处加一个漏字符号( ∧), 在该行右边横线上写出该加的词。 此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。 注意：原行没有错的不要改 | |
| Li Ming is a taxi-driver, or he likes his job very much. One day, a couple of old Americans take his taxi to their hotel. It was not long when his passengers got to their hotel. After said good-bye to the Americans, Li Ming went on to look new passengers. Suddenly he noticed a black handbag on the back seat of his taxi. Realized it must have been left by one of his passenger, he decided to stop working and return the handbag to his owner first. He opened handbag and luckily he recognized a photo in a passport. It was belonged to the old Americans. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |