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问题 单项选择题 A1型题

在高危人群中进行HIV抗体筛检来了解艾滋病的流行概况属于（）

A.一级预防

B.二级预防

C.三级预防

D.主动检测

E.哨点监测

答案

参考答案：E

解析：哨点监测是对哨点人群，即能灵敏反映总人群某种疾病流行状况的有代表性的特定人群，用统一的内容和方法开展的监测。

单项选择题

A，B两地相距10公里，甲步行从A地前往B地，

小时后乙骑车也从A地前往B地，结果甲、乙两人同时到达B地，如果乙骑车每小时所走的距离比甲每小时所走的距离的2倍还多2公里，则甲的速度是每小时( )公里。

A．3

B．4

C．5

D．5.5

E．6
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单项选择题

Lobbying groups often try to disguise a financial self-interest by clumsily dressing up their arguments in the guise of concern for the public. You see this tendency in the pharmaceutical industry (21) in energy and lumber companies who like to tout their (22) of the environment. But (23) , two new books argue, are these tactics more (24) a cause for concern than in agribusiness.
Marion Nestle’s "Food Safety: Bacteria, Biotechnology, and Bio-terrorism’ looks at the way the American meat and biotechnology industries have (25) successfully on Capitol Hill (26) stricter federal regulation, which the author argues has undermined the safety of the food supply.
(27) , Maxime Schwartz’s "How the Cows Turned Mad" (28) the origins of mad-cow disease over more than two centuries, and reveals the fallout from the British government’s blind (29) that the disease could not be (30) to humans.
In 1999, Ms Nestle writes in her earlier book, Rosemary Mueklow, the executive director of the National Meat Association, lobbied against President Clinton’s (31) to establish a more thorough testing regime for E. coli 0157: H7, a potentially (32) pathogen.
Ms Muck low’s organization—which represents meatpackers and processors who (33) to discard or reprocess meat found to be infected under the new testing regime—argued on Capitol Hill that (34) microbial testing in meat could actually lead to a greater public health risk (35) confident consumers might relax their own safe-handling procedures at home.

A. However B. MeanwhileC. AccordinglyD. Worse still
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