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问题 选择题

IPOD是美国苹果电脑公司生产的一款影音播放器，该公司从头到尾只提供概念和设计，只”。IPOD零售价为三百美元，成本110美元。在高利润中，生产零件的菲律宾和中国台湾各方所得不超过十美元，中国大陆的组装厂只收入三美元，苹果公司凭多美元。这是中国对外贸易中碰到的严峻问题。这个故事启示我们，解决我国面临的[ ]

A．发挥优势互补

B．加强自主创新

C．树立崇高理想

D．实现共同富裕

答案

答案：B

单项选择题

骨与关节结核病因及病理哪项是不正确的

A．股骨干血运差，易发生皮质骨结核

B．抵抗力、免疫力差者易发生

C．95%以上继发于肺结核

D．是一种血行引起的慢性感染性疾病

E．松质骨结核可分中央型和边缘型
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单项选择题

The first people to inhabit North America came from Asia. Scientists had hypothesized that these people traveled across a now-submerged landmass that connected the two continents until 14,000 years ago, depending for food only on the land animals they hunted as they traveled. Recent discoveries have led to the new hypothesis that the first people came by boat along the southern shore of the landmass, eating fish and sea mammals.
Which of the following, if true, most ply supports the new hypothesis by casting doubt on the earlier hypothesis

A．The landmass connecting North America and Asia extended very far to the north.

B．In Europe, maritime cultures primarily dependent on the sea for food developed no earlier than 10,000 years ago.

C．People living in Asia at the time the two continents were connected hunted land animals for food.

D．The landmass was so bitterly cold that its vegetation would have been too sparse to support land animals.

E．(E) Sophisticated and mature North American and Asian cultures that display great similarities to each other existed as far back as 8,000 years ago.
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