化学名为2-甲基-2-(4-氯苯氧基)丙酸乙酯的药物为().
A.氟他胺
B.非那雄胺
C.左炔诺孕酮
D.丙酸睾酮
E.达那唑
参考答案:B
乳糖中“蛋白质”的检查
A.Kedde反应B.Vitali反应C.Keller-Kiliani反应D.Marquis反应E.坂口反应
读问题,再回答。
1. What time is it now?
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2. How many students are there in your class?
3. What's the weather like today?
4. Is it hot today?