问题
选择题
细胞的结构与其功能相适应，下列说法不正确的是[ ]
A．哺乳动物成熟的红细胞依靠无氧呼吸获得能量
B．蛔虫细胞中无线粒体，在其细胞质中有转录、翻译及C6H12O6
2C3H6O3+能量等生理过程
C．蓝藻细胞内含有色素，能进行光合作用
D．人体皮肤细胞中，线粒体的含量少于肝细胞，因而皮肤细胞的基因总数量少于肝细胞
答案
答案：B
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细胞的结构与其功能相适应，下列说法不正确的是[ ]
A．哺乳动物成熟的红细胞依靠无氧呼吸获得能量
B．蛔虫细胞中无线粒体，在其细胞质中有转录、翻译及C6H12O62C3H6O3+能量等生理过程
C．蓝藻细胞内含有色素，能进行光合作用
D．人体皮肤细胞中，线粒体的含量少于肝细胞，因而皮肤细胞的基因总数量少于肝细胞
答案：B
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| On a warm Monday, Jenny Neilson bought a sandwich and parked her car under some trees. Rolling down the windows to 1 in fresh air, she settled back to enjoy her lunch. Suddenly she 2 a big bald (秃顶的) man running through the parking lot. Before she came to 3 what would happen, the man was there, shouting through her window, "Get out!" Neilson 4 . Pulling open her door, the man seized her 5 the neck and hair, and threw her out of the car onto the ground. She screamed, 6 her purse and the keys. Two reporters of the local newspaper, Robert Bruce and Jeff Jackson, just outside their office building on a 7 , heard the screams and began running. When they 8 Neilson's car, the attacker had jumped into the driver's seat and was 9 searching for the keys. Bruce opened the door, and he and Jackson dragged the man out. The attacker 10 back. But even in his cornered panic, he was no 11 for the two athletic men. Reggie Miller, a worker of the local newspaper, heard the screams, too. He rushed back to the office to 12 the police, and then ran back with some plastic ropes-used to tie up newspapers. With his arms 13 tight behind him, the prisoner looked up and said 14 , "I hope you guys feel good about yourselves-you just caught one of the most wanted men." They 15 him and waited for the police. Later, Bruce and Jackson were shocked to learn the man was the 16 carjacker (劫车者)and suspected murderer, whose 17 -but with a full head of hair-had been recently printed in their own newspaper. Neilson considers herself lucky 18 she suffered injuries. She believes the story might have had a 19 ending if those good people had not come to her aid. "Unfortunately," she said, "many people would 20 have done what they did, and that' the real truth." | ||||
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