标本缓急
参考答案:
“标”和“本”说明病症的主次关系,以病因和症状来说明,病因为本,症状为标,一般急则护标、缓则护本。
Books are made ___paper and paper is made ____ wood .
A. from; of B. of ; from C. of ; of
患者,女,29岁,停经56天后 * * 出血10天,妇科检查:子宫正常大小,质软,宫颈黏液见典型羊齿状结晶,应诊断为
A.异位妊娠
B.卵巢性闭经
C.先兆流产
D.无排卵型功血
E.黄体萎缩不全所致的出血