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问题 单项选择题

DSA实时成像的重要环节是下列哪项()

A．X线产生恒定

B．能产生快速脉冲曝光的高压发生器

C．增强器的能量转换率高

D．计算机容量大，处理速度快

E．启动和终止迅速

答案

参考答案：D

完形填空

One night，at 1130 p．m.，an older African American woman was standing on the side of an Alabama highway trying to endure a lashing rainstorm.Her car had broken 小题1:______and she desperately needed a ride.Soaking (湿透) wet，she 小题2:______(decide) to flag down the next car.A young white man stopped 小题3:_____(help) her—generally unheard of in those conflict­filled 1960s.The man took her to 小题4:_____(safe)，helped her get assistance and put her into a taxicab.She seemed to be in a big hurry，but wrote down his address，thanked 小题5:_______.

Seven days went by and 小题6:_____knock came on the man’s door. 小题7:_____his surprise，a giant console color TV was delivered to his home.A special note was attached.It read，“Thank you so much 小题8:________assisting me on the highway the other night.The rain drenched (湿透) not only my clothes小题9:_______ my spirits.Then you came along.Because of you，I was able to make it to my 小题10:_______(die) husband’s bedside just before he passed away.God bless you for helping me and unselfishly serving others.”
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单项选择题 A1/A2型题

在正常情况下新生儿于生后排出胎便时间为（）

A.50%新生儿12小时内有胎便排出，24小时内几乎全部有胎便排出

B.50%新生儿10小时内有胎便排出，20小时内几乎全部有胎便排出

C.50%新生儿24小时内有胎便排出，36小时内几乎全部有胎便排出

D.50%新生儿8小时内有胎便排出，24小时内几乎全部有胎便排出

E.50%新生儿24小时内有胎便排出，48小时内几乎全部有胎便排出
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