As diphtheria antitoxin is a foreign protein.白喉抗毒素是并性蛋白.Diphtheria antitoxin is a foreign protein.白喉抗毒素是异性蛋白.The prompt administration of diphtheria antitoxin in adequate amounts is the first and most important step.及时给与...
Without thinking, she pelted down the stairs in her nightgown.她想都没想，穿着睡衣就飞奔下了楼。The children pelted him with snowballs.孩子们向他投掷雪球。The rain pelted down.天下着大雨....