常用最大剂量法为最敏感和首选方法的是
A.体外细胞毒性试验 B.全身毒性试验 C.皮肤刺激及皮内反应 D.致敏试验 E.遗传毒性试验
参考答案:D
New York _____ second in the production of apples last year, producing 850,000,000 pounds. [ ]
A. formed
B. ranked
C. located
D. produced
简述淋巴细胞性脉络丛脑膜炎临床特征。