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问题 单项选择题 A1/A2型题

心绞痛与心肌梗死胸痛主要的鉴别点是（）

A.疼痛持续的时间及对硝酸甘油的反应不同

B.疼痛的放射部位不同

C.疼痛的性质不同

D.疼痛的部位不同

E.疼痛时是否伴发恶心

答案

参考答案：A

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The Greens are English。 Now they are in Beijing. This is their小题1:f     visit to china.They are going to stay in小题2:C  for three小题3:w     .They want to visit some big cities and villages. They want to 小题4:l     some Chinese, too. Mr. Green is a driver. He likes小题5:d    in Beijing very much.Mrs. Green is a teacher. She often小题6:v         a middle school小题7:n  Beijing, and she likes to speak English 小题8:w   them. They take a lot of photos in China. When they are back to小题9:E           ,they are going to show the photos to their 小题10:f    . They want the English people to know more about China.
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回转式空气预热器发生故障停止时，应（）。
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