【单选题】骨髓增生明显活跃,粒红比值减低最有可能是
【简答题】At the gathering, he talked ____ about the matter, dampening everyones spirits. A)in detail B) with ease C) on end D) in a confusing way
【单选题】There is the appreciation of the salient historical truth ________ the aging of advanced societies has been a sudden change.
【单选题】患者女,30岁。右足脓性分泌物。菌落涂片革兰染色镜检:革兰球菌阳性呈单个,双、短链和葡萄串状排列,以葡萄串状排列为主。血平板分离培养:光滑、湿润、圆形、边缘整齐、黄色凸起、菌落周围有完全透明的溶血环。生化试验:触酶阳性,血浆凝固酶阳性,发酵葡萄糖产酸,发酵甘露醇产酸,对新生霉素敏感。此病原菌应为:
【单选题】(1994)心动周期中,心室血液充盈主要是由于: