【单选题】—Hurry up! If the fire spreads to the stairs, it could block our way out! —_____________This is no time for talking.
【单选题】We'd better hurry up; I hate _____ late.
【单选题】— We'd better go downstairs right now for lunch. — _____ They serve food 24 hours a day. [ ]
【单选题】We'd better hurry up, of the time used up.
【多选题】关于塑制法制备蜜丸叙述正确的是
B.
一般情况炼蜜与药粉的比例应为1:1~1:1.5
【单选题】卢先生,42岁。急性腹痛还没有明确诊断,可以采取的措施是
【单选题】已知在 1mol·L -1 的 HCl 溶液中, E Θ Fe 3+ /Fe 2+ =0.68V , E Θ Sn 4+ /Sn 2+ =0.14V 。讲 20mL 0.10 mol·L -1 Fe 3+ 的 HCl 溶液与 40mL 0.050 mol·L -1 SnCl 2 溶液相混合,平衡时体系的电势为