主页
学科
搜索
账户
常见问题
当前学科：公路工程管理与实务
题目：
单选题
预先把土填得比设计高一些、宽一些，以加速地基固结下沉，以后再挖除超填部分属于（）。
A
超载预压
B
抛石挤淤
C
换填
D
粒料桩
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:
（）排水伸入坝体内部，能有效的降低浸润线，常用于下游水位较低或无水情况。
载重量不小于（）t的油船，应在其首尾两端配备应急拖带装置。
优势半球顶叶肿瘤可引起Gerstmann综合征，表现为__________、__________、__________和__________等。
下列属于现金满足投资比率特性的是（）。
左锁骨上淋巴结转移癌的原发部位常见于（）
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：
甲公司与乙公司签订钢铁买卖合同，约定如果钢铁2000年7月市场价格高于3000元/吨，或低于2500元/吨，则合同不再履行；若在2500元/吨至3000元/吨之间，则应于2000年8月交货。此合同为（）
妊娠高血压综合征的基本病变是（）
某女性患者表现为头昏眼花、视力减退，肢体麻木，月经量少等症状。按照藏象理论，回答以下问题。该病应属哪项脏腑功能失常所致（）