对于急性心肌梗死所致的心源性休克，目前认为最好的治疗方法是（） A.使用血管收缩药升

强度试验所用压力表精度等级不低于()级，试验压力为设计压力的()倍。

A．1．5;1．5

B．1．5；1．25

C．1．0;1．5

D．1．0;1．25

Mr Smith was ill and he went to see a doctor． The doctor asked  him to put out his tongue（舌头）， and then he said， “OK， You can put your tongue back now． There’s nothing wrong with you， but I’m afraid you have a problem． You hardly ever take exercise．”

　 “But， doctor，” Mr Smith said， “I don’t think so．”

　 “Don’t tell me what you think，” the doctor said， “I know    what you need．　I see a lot of people like you． None of them goes  any exercise． They sit in offices all day and in front of the        television in the evening． You must walk quickly for at least（至少）20 minutes a day．”

　 “I don’t want to hear any excuse（借口），” the doctor said． “You must find time for exercise． If you don’t， you will get fat and have health problems．”

　 “But I walk every day，” Mr Smith said．

　 “Oh， yes， and I know what kind of walking that is． You walk a few meters to the bus stop from your house， a few more meters from  the bus stop to your office， and a few more meters from your office  to your dining–room for lunch and back． That’s not a real walk．  I’m talking about a walk in the park or by the lake for twenty      minutes every day．”

　　“Would you please listen to me， doctor? Mr Smith said， getting a little angry with his doctor．

　　“I’m a postman，” Mr Smith went on， “and I walk for nearly（几乎）seven hours every day．”

　　For a moment the doctor was silent（沉默的）， then he said      quietly， “Put out your tongue again， will you?”

　　根据短文内容，回答下列问题。

小题1: Where did Mr Smith work?

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小题2:How did the doctor look over Mr Smith?

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小题3: What did the doctor ask Mr Smith to do?

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小题4:Did Mr Smith take enough exercise every day?

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小题5:What do you think of the doctor?

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在知识性教育培训中，（）和概念教育是互相联系的。

A、教授概念

B、事实教育

C、提高解决问题能力

D、促进创造性的教育

救援列车的出发或返回，均应通知（）。

A.列车调度员

B.车站调度员

C.对方站

D.站长

甲房地产开发公司与乙建筑工程公司签订工程承包合同，由乙建筑工程公司承建甲房地产开发公司开发的一栋高级公寓工程。合同约定了具体的工程进度要求，甲房地产开发公司按照工程进度支付工程款。在履行合同过程中，由于施工技术落后，乙建筑工程公司没有在合同约定的期限内完成相应的第一期工程，甲房地产开发公司因此拒绝向乙建筑工程公司全额支付约定的工程款的法律根据是行使( )。

A．同时履行抗辩权

B．不安抗辩权

C．先履行抗辩权

D．后履行抗辩权