问答题

Good afternoon, ladies and gentlemen. Thank you very much for coming to our conference this afternoon. I’m Henry Johnson, the（）;

答案： manager,new idea,development,success,American market

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单项选择题

听力原文：Goodfternoon, ldiesnd gentlemen. Tody my presenttion to the bord meeting听力原文：

Goodfternoon, ldiesnd gentlemen. Tody my presenttion to the bord meeting will cover the profit report of our corportion. Let us hve lookt this grph, you cn see tht our sles topped 5 million the yer before lst. Then lst yer sles dropped to 4. 2 million, with slight recoveryt the end of the finncil yer. However, this yer sles hve continued to drop tonll-time low of 3. 8 million. Now let’s lookt our mrket shre.s you cn see, we hve 25% of the mrket shre, 10% down on lst yer… Who is the speker The CEO of corportion B．The secretry of the CEO C．Thessistnt engineer D．The HR mngerA．The CEO of a corporationB．The secretary of the CEOC．The assistant engineerD．The HR manager

单项选择题

高等生物具有比低等生物更复杂的生命活动。因此，从理论上说，它们的遗传物质应该比低等生物更多。但事实上，一些低等生物，如蝾螈和某些原始的鱼类，甚至原生动物，一个细胞中DNA的碱基对数量，远远超过大多数的哺乳动物。这种现象称为：（）

A.中性进化
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C.综合进化
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