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饮流肢体，则为

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如果并发乳头肌断裂，出现何种体征的可能最大

A. 心尖区出现收缩中晚期喀喇音和响亮的收缩期杂音
B. 心尖区出现舒张期奔马律和舒张期杂音
C. 心律不规则
D. 心尖区S1降低，出现第4心音
E. 心包摩擦音

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为了进一步确诊，建议检查

A. 24小时心电图
B. 超声心动图
C. 心血管造影
D. 核磁共振
E. 以上都包括

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Part A
Directions: Read the following three texts. Answer the questions on each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.
The way people hold to the belief that a fun-filled, painfree life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness, then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not, things that lead to happiness involve some pain.
As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably brought by such things as marriage, raising children, professional achievement, religious commitment(承担的义务), self-improvement.
Ask a bachelor(单身汉)why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features.
Couples with infant children are lucky to get a whole night' s sleep or a three-day vacation. I don' t know any parent who would choose the word fun to describe raising children. But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild.
Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all.
According to the author, a bachelor resists marriage chiefly because ______ .

A. he is reluctant to take on family responsibilities
B. he believes that life will be more cheerful if he remains single
C. he finds more fun in dating than in marriage
D. he fears it will put an end to all his fun, adventure and excitement

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A．Sitting on his hands.B．Reaching out his hands to help the eating process.C．Tying his

A. Sitting on his hands.
B. Reaching out his hands to help the eating process.
C. Tying his hands behind his back.
D. There's no rule concerning the hands.

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