患者，男，43岁，民工。10年前患肺结核，间断抗结核治疗。2个月_爱下问搜题

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问题单项选择题

患者，男，43岁，民工。10年前患肺结核，间断抗结核治疗。2个月前出现气短，咳嗽，咳少量黄痰，后逐渐加重，自觉呼吸困难。查体：消瘦体型，胸廓不对称，左侧肋间隙塌陷，气管向左侧移位，右侧胸廓略膨隆；叩诊左侧呈浊音，听诊呼吸音减低。下列各项中与该患者呼吸困难无关的是

A．肺结核病变广泛

B．锁骨上淋巴结肿大

C．胸膜增厚

D．慢性小量自发性气胸

E．合并细菌性感染或肺栓塞

答案

参考答案：B

完形填空

I want to make the most of every day. And, like most people, I've      that the best way to do it is (to) let go of past failures. But that's not all. One can never fully      today while thinking too much about past successes, either. People never      while resting comfortably on their laurels (荣誉). The      is that sometimes our successes hold us back more than our failures!
I once      a story about the Oscar owner, actor Clark Gable. A friend      Gable one afternoon at the actor's home. She brought along her      son, who was playing happily with toy cars on the floor. He      he was racing those cars around a great track, which in      was an imaginary circle around a golden statue. The small statue the boy played with was actually the Oscar Clark Gable      for his performance in the 1934 movie It Happened One Night.
When his mother told him the time had come to      , the little boy asked the actor, “Can I have this？”      to the Oscar.
“Sure,” he smiled. “It's yours.”
The horrified mother       . “Put that back immediately！”
Giving the child the golden statue, Clark Gable said, “Having the Oscar around doesn't mean anything to me;       it does.” The actor seemed to know that past success could be a       hammock (吊床) upon which he may be tempted to     , rather than a springboard setting him to begin a new start.
You may have learned to let go of past       and mistakes in order to free the present. But will you forget past successes and achievements in order to free the      ？Will your past be a springboard or a restful hammock?
“I like the       of the future better than the history of the past，” said Thomas Jefferson. I     . After all, the future, not the past, is where the rest of your life will be lived.

A．discovered　

D．concentrate

B．comfortable

A．difficulties

D．achievements

单项选择题

大样本是指按随机原则选取的被试数量在（）以上的样本。

A.15

B.30

C.40

D.50