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听力原文:M: Isn't it a relief to see people and lights, Turner? Now, let me see. Where are we exactly? According to my map, this must be Chagford. W: You're right, Don. That sign says Chagford Town Hall. But there's a more interesting notice on the other side of the square. Do you see what it says? 'Open for Devon Cream Teas'. M: Oh, yes, so it does. Oh, I must get a newspaper. There's a newsagent next door. W: What for? M: To find out what's been happening. W: I don't need a newspaper. We must have been walking for at least six hours. My feet have been hurting for a- bout four hours and I've been starving since we shared that tin of cold beans. M: You're hungry again? I see what you mean. That tea shop does look interesting. We could plan tomorrow's walk while we were having tea. W: So toady we had complete Devon cream teas, with additional sandwiches and cakes, and another order of scones. I feel better. How about you? M: A Devon cream tea is better than a tin of cold beans. In fact, it's better than almost anything... except a good newspaper. Do you ever buy a newspaper? W: Not often. But I watch television. M: Television! It only scratches the surface. W: Television coverage is very dramatic. M: Yes. You learn what happened but never why it happened. W: Rubbish. M: TV workers aren't in aren’t in a position to fill in the background. W: They were there. M: No, they only show you the bits. M: Yes, of course. See to it, will you, Turner. I must get a newspaper before the newsagent closes. W: Could you get me a paper? M: What for? W: To find out what's on television. (20)
A.
A tea shop.
B.
A newsagent.
C.
Lights.
D.
A shoes store.
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【单选题】(2009山东菏泽学业)细胞的生命活动靠的是细胞各部分结构的分工协作。其中细胞膜的功能是
A.
控制细胞内外物质的进出
B.
提供能量
C.
传递遗传信息
D.
储存营养物质
【判断题】蓝细菌早期曾被称为“蓝藻”,它与微型藻类同属真核微生物。( )
A.
正确
B.
错误
【单选题】细菌细胞膜的功能是
A.
细菌的选择性渗透屏障,允许特定的离子和分子进出细胞
B.
细菌致病力
C.
细菌的形态结构
D.
与细菌的致病性有关
E.
与细菌的染色性有关
【简答题】真核生物的内共生起源假说认为:大约在15亿年以前,一些大型的具有吞噬能力的原始真核细胞,先后吞并了几种原核生物(例如细菌和蓝藻),由于后者没有被分解消化,它们从寄生逐渐过渡到共生,成为宿主细胞里面的细胞器。例如被吞噬的好氧细菌成为了线粒体,而被吞噬的蓝藻成为了叶绿体。请根据内共生假说回答问题:已知氯霉素能抑制原核生物蛋白质的合成,现用氯霉素分别处理线粒体的核糖体和真核生物细胞质的核糖体,请预测实验...
【简答题】细胞膜的功能是什么?
【判断题】内共生起源学说认为线粒体和叶绿体分别起源于原始真核细胞内共生的细菌和蓝藻。而非共生起源学说认为真核细胞的前身是一个好氧细菌。()
A.
正确
B.
错误
【多选题】在细胞结构中,细胞膜的功能是_____,细胞质的功能是______,细胞核的功能是_____ [     ]
A.
控制细胞内外物质的进出
B.
具有流动性
C.
与生物遗传有关
D.
与外界环境进行物质交换
【单选题】填入下面横线处的几句话,连贯、得体的一项是( )(1)、观察家们认为,乌克兰危机的走向还需要继续观察,如果缺少必要沟通,示弱或示强都可能导致危机再升级:_______________。 (2)、雾霾天气的不断出现,也在警告所谓汽车时代的沉重代价。大城市部分居民的生活方式,需要有新的审视。汽车尾气污染量的下降,显然有赖于每一个车主的努力。_________________。(3)车联网带来了社会及经...
A.
(1)示弱可能刺激对方得寸进尺,示强则可能让对方感受到威胁。 (2)城市追求更为优质的公共交通系统,当与个人自觉地尽量选择公共交通出行结合在一起(3)经济转型、培育新型
B.
(1)示强则可能让对方感受到威胁,示弱可能刺激对方得寸进尺。 (2)城市追求更为优秀的公共交通系统,当与个人自觉地尽量选择公共交通出行结合在一起(3)培育新型、经济转型
C.
(1)示弱可能刺激步步紧逼,示强则可能让对方感受到威胁。 (2)城市追求更为优质的公共交通系统,当与个人自觉地公共交通出行结合在一起(3)经济转型、培育新型
D.
(1)示弱可能刺激对方得寸进尺,示强则可能让对方感受到威胁。 (2)城市追求更为优质的公共交通系统,当与个人尽量选择公共交通出行结合在一起 (3)经济转型、培养新型
【多选题】细菌细胞膜的功能是
A.
物质的转运
B.
能量的产生
C.
细菌细胞的分裂
D.
蛋白质的合成
E.
分泌各种酶类
【单选题】细胞膜的功能是
A.
构成细胞界膜
B.
构成细胞屏障
C.
利于物质交换
D.
与信号转导有关
E.
以上都是
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