【单选题】听力原文: Astronauts have moved the American shuttle Discovery and the Hubble telescope into a higher orbit. They took the action when part of the unexploded rocket was expected to pass within less than a...
A.
Before the telescope was repaired.
B.
After the rocket was exploded.
C.
When the rocket was to be within less than a kilometer from the spacecraft.
D.
When the experts could look deeper into space than ever before.
【简答题】患者,男,28岁。患者主诉脐周痛3小时,后转移至右下腹剧烈疼痛2小时。体检示:体温39.5°C,脉搏115次/分,血压117/82mmHg;右下腹压痛、反跳痛、肌紧张,肠鸣音减弱;腰大肌试验阳性。实验室检查:WBC13.7×109/升,中性粒细胞比例0.84. (1)根据上诉病例,提示患者阑尾炎位置最可能位于 A .靠近闭孔内肌 B.盲肠后位或腰大肌前方 C.盲肠前位 D .腰大肌后方 ...