可引起疾病暴发的是（）
A.接触传播
B.诊疗手术传播
C.水和食物传播
D.各种制剂传播
E.虫媒传播
参考答案：C
According to statistics, a man is more than twice as likely to die of skin cancer _____ a woman. [ ]
A. than
B. such
C. so
D. as
宫内节育器的并发症正确的是
A．感染B． * * 出血C．腰腹酸胀感D．经量增多E．子宫穿孔
