问题
多项选择题
交界性早搏的心电图表现是()。
A.有窦性P′波
B.QRS>0.12s
C.代偿间期常完全
D.偶联间期常固定
E.提前出现的QRS波群,逆行P′波可有可无
答案
参考答案:C, D, E
交界性早搏的心电图表现是()。
A.有窦性P′波
B.QRS>0.12s
C.代偿间期常完全
D.偶联间期常固定
E.提前出现的QRS波群,逆行P′波可有可无
参考答案:C, D, E
完型填空:仔细阅读下面短文,从题后所给的ABCD四个选项中选出最佳答案。 | ||||
How to practice spoken English? How can we practice our spoken English? The first and the most important thing is to believe 1 . You should always be full of confidence or you 2 be able to improve your English. You should often encourage yourself. "Come on, don't be afraid!" You should never lose heart and never give up. Maybe you are afraid of losing face, but you should think since we are students and we're 3 , there's no need to worry 4 anything. You must always be active in practice. There's no problem that your pronunciation and intonation (语调) can't be as good 5 the native people because we are Chinese, and we don't have chances to live in foreign countries and talk with the people there 6 . But you must know that the main way to study English is to make ourselves understood and 7 other people. You should believe that native speakers will not laugh at you. 8 they will encourage you. So if you are brave enough you'll certainly make a rapid progress in your 9 English. 10 be shy or afraid! Just have a try. | ||||
|