题型:判断题 A client with hepatitis A expresses concern that his friends may also acquire hepatitis. Which of the following is most commonly used for prophylactic treatment of people exposed to hepatitis AA. Penicillin.B. Sulfadiazine (Microsulfon).C. Immune serum globulin.D. Interferon. 查看答案
题型:判断题 阿伏加德罗常数约为6.02×1023mol-1,下列叙述正确的是 ( )A.常温常压下,18.0 g NH4+中所含的质子数为6.02×1024B.250mL2mol/L的氨水中含有NH3·H2O的分子数为0.5×6.02×1023C.1 L 1 mol/L的K2CO3溶液中离子总数大于3NAD.1mol Cl2参加的任何反应,反应过程中转移电子数都是2NA 查看答案