单选题 If it is left ______, this fast-spreading disease is likely to affect millions of Asian and African children, including more and more injured grown-ups.
A. unchecked B. uncontrolled
C. transmitted D. contaminated

【正确答案】 A
【答案解析】[解析] uncheck“任其发展下去，不制止”；transmit“传输；转送”；contaminate“弄脏；污染”。句意为：“这种迅速蔓延的疾病如果任其发展下去，很有可能影响到数以百万计的亚洲和非洲的孩子们，包括越来越多的受伤成年人。”control disease在这里搭配不当，所以不选B。