题目内容

运动的时候,产热的主要器官是( )

A. 肌肉
B. 呼吸系统
C. 神经系统
D. 肾

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炎热的夏天,下列哪些运动项目的运动员容易发生运动性中暑

A. 50公里竞走
B. 场地自行车
C. 马拉松
D. 铁人三项

热射病就是中暑高热

A. 对
B. 错

在PubMed中利用主题词检索CT诊断脑肿瘤(brain cancer)的文献,应采用的检索式为 ( )

A. ("Tomography, X-Ray Computed"[Mesh]) AND "Brain Neoplasms/diagnostic imaging"[Mesh]
B. ("Tomography, X-Ray Computed"[Mesh]) AND "Brain Neoplasms/diagnosis"[Mesh]
C. (CT AND "Brain Neoplasms/diagnosis"[Mesh]
D. CT AND Brain Neoplasms
E. ("Tomography, X-Ray Computed"[Mesh]) AND "Brain Neoplasms"[Mesh]

Each type of multimeter has its advantege. Used as a voltmeter,a _______ multimeter is usually better because its resistance is much higher, 1 Mega-ohm or 10 Mega-ohm.

A. digital
B. analog
C. resistance
D. current

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