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问题 多项选择题

多源性房性心动过速的心电图特点（）

A.P波起源于窦房结、心房、房室交界区

B.同一导联至少有3种不同形态的房性P波

C.P-P之间等电位线消失

D.缺少心房主导节律点

E.心房率100～250次/min

答案

参考答案：B, D, E

完形填空

从Ⅱ栏中找出Ⅰ栏各句的应答语。(10分)

Ⅰ                                     Ⅱ

小题1:How old are you?                      A. Yes, it is. Thanks.

小题2:What color is your bag?                   B. I’m thirteen.

小题3: Is this your book?                       C. How do you do?

小题4: How do you do?                       D. It’s yellow.

小题5:Do you know Mike?                 E. No, I don’t.

小题6:What does she look like?               F. It is mine.

小题7:Whose pen is this?                    G. Yes, he does..

小题8: Does he have an apple?                H. No, they are not mine.

小题9:Are these pants yours?                I. The U.S.A.

小题10:Where is Jim from?                   J. He is tall and he has a big nose.
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单项选择题

平版印版的基本特性是：（）。

（A）版面的平整

（B）适于书刊印刷

（C）选择吸墨性

（D）大多使用PS版
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