肺炎的解剖分类。
参考答案:
解剖分类可分为大叶性(肺泡性)、小叶性(支气管性)及间质性肺炎。
________ children whose parents had died in the earthquake ________ sent to other families.[ ]
A. A great number of; was
B. A large number of; were
C. The great number of; was
D. The great number of; were
在真鲷、石雕仔鱼的培育中,水质等环境条件都符合育苗要求,投喂饵料采用面包酵母培养的褶皱臂尾轮虫,鱼苗摄食后,出现食欲减退、游泳缓慢、腹部膨胀等症状,并在2-3天内全部死亡,请分析可能原因?解决办法如何?