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问题 单项选择题

采用联合体或合作体进行工程总承包是一种总承包的模式，以下说法正确的是（）。

A.联合体或合作体是为一个特定的项目组成的

B.联合体或合作体待项目结束后就形成一个永久组织

C.联合体或合作体通常由若干个不同专业的施工单位组成

D.组成联合体或合作体来承担建设工程项目总承包的任务的模式在美匡I较为常用

答案

参考答案：A

问答题

Read the argument and the instructions that follow it, and then make any notes that will help you plan your response. Write your response on a separate sheet of paper. If possible, type your essay on a word processor.
A spokesman for a dairy company issued the following statement:
Many consumers buy organic milk because they are concerned about the consequences of the widespread use of recombinant bovine growth hormone and antibiotics in the conventional dairy industry. These concerns, however, are unfounded. While bovine growth hormone has been shown to produce significant developmental effects in cattle, no study has ever shown that its presence in commercial milk has had any developmental effects on human consumers. Regarding antibiotics, while it has been argued that large-scale, preemptive use of antibiotics in cattle feed can interfere with the animals’ immune systems and can lead to the proliferation of antibiotic-resistant strains of bacteria, neither of these effects affect the quality of the milk produced by cattle that are fed antibiotics. Therefore, there is no reasonable justification for a consumer to pay $5 for a gallon of organic milk when a perfectly good gallon of conventional milk can be had for half the price.
Discuss how well reasoned you find this argument. In your discussion, be sure to analyze the line of reasoning and the use of evidence in the argument. For example, you may need to consider what questionable assumptions underlie the thinking and what alternative examples or counterexamples might weaken the conclusion. You can also discuss what sort of evidence would strengthen or refute the argument, what changes in the argument would make it more logically sound, and what, if anything, would help you better evaluate its conclusion.
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单项选择题

下列哪条动脉损伤是导致股骨头缺血坏死的主要原因（）

A.股骨圆韧带小动脉

B.干骺端上侧动脉

C.旋股内侧动脉

D.旋股外侧动脉

E.股骨干滋养动脉
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