诊断急性阑尾炎时,最有诊断意义的是
A.腹肌紧张
B.结肠充气试验阳性
C.腰大肌试验阳性
D.闭孔肌试验阳性
E.右下腹固定压痛点
参考答案:E
When I stayed in the countryside I enjoyed _____ leisurely walk in the fields, and felt _____ warmth
of the sun on my face.[ ]
A. /; the
B. a; a
C. /; a
D. a; the
矿井反风后,主要通风机的供给风量不应小于正常风量的()。