各种疾病包括原因未明疾病都有地区分布的特点,造成疾病的地区分布不同主要原因有() A

题型:单项选择题 A1型题

问题:

各种疾病包括原因未明疾病都有地区分布的特点,造成疾病的地区分布不同主要原因有()

A.传播途径的原因

B.自然环境因素的原因

C.人群的风俗习惯的原因

D.致病因子强度的原因

E."三个环节""两个因素"的综合原因

考点:卫生资格考试(中初级)疾病控制主治医师主治医师(疾病控制)基础知识考前押卷(一)
题型:单项选择题 A1型题

对计算机资源的管理、监控和维护的软件是( )。

A.操作系统

B.系统软件

C.工具软件

D.应用软件

题型:单项选择题 A1型题

下列属于广谱半合成青霉素类的药物是()。

A.美西林

B.羧苄西林

C.氯唑西林

D.替卡西林

E.氨苄西林

题型:单项选择题 A1型题

Darlene Villanueva provides analytical support for portfolio managers at a small investment management firm. Villanueva’s latest report highlights two companies. Company A and Company B. Company A has consistently earned a higher rate of return on assets than their cost of capital, but the stock price is substantially greater than the fair value. Company B’s earnings have been pulled down by the recent economic slowdown, but its stock price has remained stable despite the negative returns on the overall market. Which of the following statements correctly categorizes the two companies()

A. Stock A is a growth stock and Company B is a cyclical company.

B. Company A is a growth company and Stock B is a defensive stock.

C. Company A is a value company and Stock B is a cyclical stock.

题型:单项选择题 A1型题

军事运输等级是根据什么确定的?共分几个等级?

题型:单项选择题 A1型题

玻璃钢水源井套管还配有(),筛管由机械加工而成。

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