主页
学科
搜索
账户
常见问题
当前学科：治安警种考试(综合练习)
题目：
判断题
公安机关内设执法勤务机构警员职务由高至低为：一级警长、二级警长、三级警长、四级警长、一级警员、二级警员、三级警员。
A . 正确
B . 错误
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
学与教相互作用过程由下列哪些活动交织在一起()。
运输现象发生的首要前提是（）。
回答题: Exercise Being Good or BadCan exercise be a bad thing? Sudden death during or soon after strenuous exertion on the squash court or on the army training grounds, is not unheard of. 51 trained marathon runners are not immune to fatal heart attacks. But no one knows just 52 common these sudden deaths linked to exercise are. The registration andinvestigation of such 53 is very patchy; only a national survey could determine the true 54 of sudden deaths in sports. But the climate of medical opinion is shifting in 55 of exercise, for the person recovering from a heart attack as 56 as the average lazy individual. Training can help the victim of a heart attack bylowering the 57 of oxygen the heart needs at any given level of work 58 the patient can do more before reaching the point where chest pains indicate a heart starved of oxygen. The question is, should middle-aged people, 59 .particular, be screened for signs of heart disease before 60 vigorous exercise?Most cases of sudden death in sport are caused by lethal arrhythmias in the beating of the heart, often in people 61 undiagnosed coronary heart disease. In North America 62 over 35 is advised to have a physical check-up and even an exercise electrocardiogram. The British, on the whole, think all this testing isunnecessary. Not many people die from exercise, 63 , and ECGs ( 心电图 ) are notoriously inaccurate. However, two medical cardiologists at the Victoria Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or younger people 64 at risk of developing coronary heart disease. Individuals showing a particular abnormality in their ECGs 65 , they say, a 10 to 20 times greater risk of subsequently developing signs of coronary heart disease, or of sudden death.第51题应选：
患者，女，12岁。左上1冠折1/2，咬合关系正常，患者经根管治疗后，最佳修复设计方案为（）
机械产品的功能是对()进行传递和变换的程序、功效和能力的抽象化描述。A.能量流B.电流C.物质流D.机械流E.信息流
为保证楔条夹具在使用中能自锁，楔条的楔角应（）其摩擦角。
室外地下消火栓的优点是（）
治疗弥散性血管内凝血最重要的是（）
认知的含义
患者，女，23岁，心脏超声检查示二尖瓣回声轻度增强，开放受限，左心室内仅见一个乳头肌，前后瓣叶的腱索均附着于此，考虑为（）。