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[填空题] The worry about salt is that it may 【B1】 high blood pressure. Chemically, salt 【B2】 of sodium and chloride ions, both of 【B3】 are common in the human 【B4】 and are important for many physiological and biochemical 【B5】 We not only need salt, we are salt; but too 【B6】 may still be bad for us. Although the idea of a 【B7】 between salt and high blood pressure 【B8】 back to 2000 BC, there is still no scientific 【B9】 as to whether this is so or not. One reason for this 【B10】 to agree is that individual salt intake 【B11】 enormously from day to day, and so reliable measures of intake are hard to come 【B12】 .
Those who believe that salt does 【B13】 to high blood pressure point to the high 【B14】 of high blood pressure in countries that eat a very 【B15】 diet. In Japan, for instance, where salted fish is an important part of the diet, high blood pressure and 【B16】 complications are common, 【B17】 among some Amazonian and African tribes, which have a low intake of salt, they ar
[单项选择]关于首过效应错误的描述是：（）。
A. 使进人人体循环的药量减少
B. 经过首过效应后疗效加强
C. 舌下给药可避免首过效应
D. 直肠给药可避免首过效应
[单项选择]（）是指光驱在维持一定的转速和数据传输率时所占用CPU的时间，它也是衡量光驱性能好坏的一个重要指标。
A. 数据传输率
B. 平均寻道时间
C. CPU占用时间
D. 速度
[单选题]电路中某两点的电位差又叫
A.电压
B.电流
C.电阻
D.电抗
[判断题] 场效应晶体管又称多极型晶体管,因为它导通时只有一种极性的载流子参与导电。( )
A.正确
B.错误
[判断题]井、坑、孔、洞或沟（槽），应覆以与地面齐平而坚固的盖板。检修作业，禁止临时打孔、洞。
A.正确
B.错误
[单选题]沥青玛珶脂碎石混合料属于（ ）结构。
A.密实—悬浮
B.密实—骨架
C.骨架—空隙
D.骨架—悬浮
[单选题]女性,25岁,突感上腹部剧痛,不能直腰0、5小时。查体:血压:14、7×10、5kpa,脉搏110次/分,板样腹,肠鸣音消失。血红蛋白120g/L,白细胞:8、3×109/L。此时最有价值的检查是 ( )
A.腹部立位 X线平片
B.血生化
C.腹部B超
D.腹部CT
E.腹腔穿刺或灌洗
[不定项选择题]共用题干
Stomach Ulcer
Stomach ulcers are the cause of severe pain for many people.Doctors have been able to help lessen the pain of ulcers.They could not cure them.Now doctors have discovered a cause of ulcers.This means they may have found a way to cure people who suffer from the stomach pain.Studies show that ten percent of the population will develop an ulcer at some time in their life.So a possible cure is good news for many people.
Ulcers are wounds in the stomach that are similar to small cuts or tears.These wounds can harm the tissue in the stomach,the pipe that carries the food to the stomach or parts of the small intestines.Fluids in the stomach then increase the pain of an ulcer.How does a person know he or she has an ulcer? Doctors say most people with ulcers feel a burning pain in their chest or stomach.This pain often is called heartburn.It usually happens before eating or during the night.It causes some people to lose their desire to eat,or they are unable to keep food in their stomachs.Doctors believed that ulcers were caused by unusually strong stomach fluids,which damaged stomach tissue.Now they have discovered that most ulcers are caused by a bacterial organism called Hillico Bactor Pilorie or H Pilorie.H Pilorie bacteria are what make stomach produce extra stomach fluid.Doctors found that they can kill the bacteria with medicines called antibiotics.Health experts say the discovery of a cure for ulcers can save thousands of millions of dollars in medical costs.They also believe curing ulcers will reduce the number of people who develop stomach cancer.The number of people with stomach cancer is very high in Japan,Southeast Asia and parts of Africa.
Doctors say a person is more likely to get an ulcer if someone in his or her family has had one.In fact a person with the family history of ulcers is three times more likely to get one than other people.There are ways people can protect themselves from developing an ulcer.Doctors say it is more important to reduce the amount of strong fluids in the stomach.To do this,doctors say,people should not smoke cigarettes or drink alcohol.And they say people should reduce tension in their lives.
There has been a change in doctors'understanding of the cause of stomach ulcers.
A.Right
B.Wrong
C.Not mentioned
[单选题]水只能传播纵波，当水温为20℃时其声速为()。
A.1000m/s
B.1500m/s
C.2700m/s
D.3200m/s
[判断题]车床主轴箱内注入的新油油面不得高于油标中心线。( )
[判断题]作战思路、作战方针、作战原则、作战程序、作战方式确定后,军事指挥是决定性因素。( )
A.正确
B.错误
[多项选择]关于《法经》的叙述：①《法经》的作者是燕国李悝；②《法经》中的《具法》概括了盗、贼以外的各种犯罪行为和刑罚；③《法经》是一部"诸法合体"而以刑为主的法典；④《杂法》、《捕法》多属于诉讼法的范围；⑤《法经》是中国历史上第一部比较系统的封建成文法典。不正确的有：______。
A. ①
B. ①②④
C. ⑤
D. ③
[单选题]固定施工地段必须在施工地点两端设置有效的隔离设置，其隔离设施距离规定是什么？
A.两端延伸10米
B.两端延伸20米
C.两端延伸30米
D.两端延伸50米
[判断题]孙中山领导的中国同盟会领导和指挥了1911年10月爆发的武昌起义。( )
A.正确
B.错误
[单选题]456.列车按施工特定行车办法办理时，准许车站不向司机递交（ ）。
A.调度命令
B.路票
C.绿色许可证
D.书面行车凭证和调度命令
[单选题]湿式潜水服的厚度通常为( )。
A.3mm或6mm
B.8mm或10mm
C.4mm或7mm
D.10mm或12mm
[单选题]桥长在50 m以下的桥梁墩台或桥梁位于干沟、封冻河上进行墩台定位测设时,都可以采用( )丈量法。
A.曲线
B.三角
C.直接
D.间接
[判断题]异议是真实的异议与虚假的异议，比如：客户说从朋友处听到说您的产品容易出故障，这属于虚假的异议。
[判断题]受限空间作业时可根据受限空间作业情况，安排作业人员定时轮换，无需在受限空间外部设监护人。（）
A.正确
B.错误
[单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}}
A. In a post office.
B. In a department store.
C. At a bank.
D. In a grocery store.
[判断题]2.143机动车经修理和调整或者采用控制技术后,向大气排放污染物或者噪声仍不符合国家标准对在用车有关要求的,应当引导报废。
A.正确
B.错误
[单选题]供电段所有参与施工单位作业的监控人员，除进入施工单位的
工作票并参与施工单位分工外，还必须开具配合监控作业的
（ ）。
A.工作票
B.派工单
C.监控计划
[单选题]检查右支气管时，应将受检者的头
A.略抬高
B.略向左偏
C.以上都不是
D.略向右偏
E.摆平直
[判断题]2.33 实习标志、残疾人机动车专用标志式样，应当在车辆管理所业务办公大厅公布。
A.正确
B.错误
[单项选择]最常伴有脑膜炎的肺结核（）
A. Ⅰ型
B. Ⅱ型
C. Ⅲ型
D. Ⅳ型
E. Ⅴ型
[填空题]目前在我国，国家权力机关对行政机关及公务人员的监督最重要的是（）
[简答题]丁公司召开临时股东大会的程序有哪些不符合法律规定之处
[单选题]接触网导线断裂触地时,不得进入断线落点( )m范围内。
A.4
B.5
C.8
D.10
[单选题]在城市轨道交通系统中解决“一票换乘”的票款清分的部门为( )。
A.票务中心
B.控制中心
C.财务部
D.清算中心
[多项选择]毒扁豆碱的特点有
A. 毒性较大
B. 直接激动M胆碱受体
C. 用于治疗青光眼
D. 对眼的作用较毛果芸香碱强而持久
E. 引起缩瞳、眼内压降低
[单选题] -30.下列除哪项外，均属于药性升降浮沉的确定依据
A.药物的剂型
B.药物的效用
C.药物的性味
D.药物的质地轻重
[单项选择]正常人空腹血浆胰岛素浓度参考范围为( )
A. 2～4mU/L
B. 5～6mU/L
C. 10～20mU/L
D. 20～50mU/L
E. 50～100mU/LL
[单项选择]
M: Can you tell me how much it would cost to send this package by air
W: Do you want to insure it
Where is this conversation probably taking place（）
A. In a post office.
B. At an insurance agency.
C. On an airplane.
D. In a moving company.
[判断题]在有突出危险的采煤工作面，可采用松动爆破作为防突措施。
A.正确
B.错误
