试验应用鸡公雏, 检测了人工合成青蒿素对鸡盲肠球虫病的预防效果.Using younger cocks, the preventive result of artificial synthesize arteannuin to Chicken Caecum Coccidiosis was examined.目的为比较中药和化学抗球虫药对兔球虫病的疗效.In order to compare the efficacy of Chinese...
Then he put his hand into pocket and took out a phrasebook.然后他把手伸进了衣袋,掏出一本常用语手册.Why did the man need a phrasebook?为什么这位男士需要一本常用语手册?Then he put his hand into his pocket and took out a phrasebook.然后他把手伸进衣袋,掏出了一本常用语手册....