阿尔库俄纽斯（Alcyoneus）

患者女，15岁，半个月前腹泻、恶心、呕吐，入院前于学校操场跑步时晕倒，大约10min后转醒，无尿、粪失禁，无口吐白沫。急诊入院，查EKG：三度房室传导阻滞，cTnT0.156ng/ml，柯萨奇B组病毒IgM（+），病毒中和抗体＞1∶640，肠道病毒RNA（+）。此时最重要的诊治措施为（）

A.大剂量维生素C

B.给予干扰素抗病毒治疗

C.甲泼尼龙100mg，1次/d治疗

D.临时起搏器植入

E.急查脑电图，明确晕厥病因

电动工具应做到“（）”。

A、一机一保护

B、一机一闸

C、一机一闸一保护

Beijing retiree Yang Hua was devoting a lot of his time to staying fit by completing his favorite exercises. But, according to his doctors, his routine may have done more harm than good—he recently suffered an illness because he was exercising the wrong way.

“Many people today still do not know how to exercise in scientific ways. As a result, they do not gain from the exercises and in fact may even hurt themselves, said Yang Zeyi, an executive board member of the Asian Council of Exercise and Sports Science.

Health experts said that a cardiopulmonary（心肺的） exercise test is necessary for middle-aged and  senior citizens  and those with special conditions. The test helps those engaging in exercise know whether their routines（惯例） are safe. It also can find potential unhealthy changes to exercisers' organs and provide suggestions to get fit by conducting real-time and continuous measurement of blood pressure and other physical parameters. The test can also analyze the maximum functioning of which the cardiopulmonary system is capable.

In the past, Yang would not think of creating an exercise plan because of his physical condition.

“I liked to do exercises in the evening but experts told me that the high-strength exercises at night would be harmful to my health. They advised me to choose some easy exercises such as walking and to limit the length of time I exercise,”he said. Sun Kanglin, Director of the Beijing Municipal Bureau of Sports, said, “Exercisers should choose a proper routine and length of time to engage in the activity according to their age, physical condition and profession. It's important to give scientific directions to today's exercisers.”

He said Beijing's 18 districts and counties all have physical monitoring stations where people could get suggestions on how to exercise.

“The number of such stations will increase to more than 100 in the future and they will be able to regularly monitor citizens’ physiques. They will also publish statistics for the public,” he said.

67. Yang Zeyi said                             .

A. people will hurt themselves when exercising

B. middle-aged should not exercise

C. people gain nothing because they exercise

D. many people have no scientific ways of exercising

68. The underlined words in the paragraph 3 means                  

A. old people                         B. people in high position  

C. people who have much money          D. people who have knowledge

69. It can be inferred that                         .

A. Yang Hua has never exercised.  

B. Yang Hua knew how to exercise scientifically

C. Yang Hua has done no harm by exercising

D. Yang Hua must be an old man

70. From the passage we know                           .

A. today’s exercisers know how to exercise in a scientific way

B. we should exercise according to our ages and physical condition

C. exercise tests are not necessary.

D. the number of exercisers will increase

常温下某强酸溶液pH=a，强碱溶液pH=b，已知a+b=12，酸碱溶液混合pH=7，求酸溶液体积V（酸）和碱溶液体积V（碱）的关系______．

风湿性疾病是指

A．累及软组织及血液的一大类疾病
B．累及肌肉、肌腱的一大类疾病
C．累及关节的一大类疾病
D．累及关节及周围软组织的一大类疾病
E．累计关节、肾脏、皮肤的一大类疾病