1.What does the man prefer to do on Sundays? A. Go shopping. B. Go swimming. C. Do some reading. 2.Where does the conversation probably take place? A. In a hotel. B. In a hospital. C. In a restaurant.
1．现在北京北坞公园水稻田的最明显的生产特点为 A．刀耕火种 B．精耕细作 C．机械化生产 D．利用新科技
一、选择题：本题共13小题，每小题6分，共78分。在每小题给出的四个选项中，只有一项是符合题目要求的。 1．氨基酸的平均相对分子质量为120，如有一个两条链的多肽，相对分子质量是12276，合成这个多肽的氨基酸的数目和指导它合成的DNA分子脱氧核苷酸数目依次是 A．144，864 B．144，432 C．120，720 D．120，360
1.Which team lost the basketball match? A. Class One. B. Class Two. C. Class Three. 2.How does the woman keep slim? A. By going on a diet. B. By eating fruit and vegetables. C. By doing physical exercise.
一、选择题：本题共13小题，每小题6分，共78分。在每小题给出的四个选项中，只有一项是符合题目要求的。 1．下列关于细胞结构与功能的叙述，正确的是 A．衰老细胞中 DNA、RNA 和蛋白质的含量都会明显降低 B．线粒体内膜上附着有呼吸酶，有利于催化丙酮酸分解 C．细胞分化和衰老过程都有细胞形态、结构和功能上的变化 D．胰腺细胞中内质网和高尔基体都能对分泌蛋白进行合成和加工
1.What will the man do first? A. Work overtime. B. Walk the dog. C. Do some exercise. 2.What is Stans job? A. A chef. B. A teacher. C. A photographer.
We love the sea. We swim into it, live near it, build beside it, and even imagine about living under the sea.
快读网 www.kuaidu.com.cn 网站邮箱：wodd7@hotmail.com