单选题 An epidemic of Ebola virus in Africa prompted increased awareness of the potential dangers of so-called hot viruses, which cause deadly and virtually untreatable diseases in humans and other animals.
【正确答案】 A
【答案解析】[解析] 句意：非洲埃博拉病毒的爆发使人们愈发意识到所谓的热病毒所具有的潜在危险，而热病毒会给人类及其他动物带来致命且几乎无法治愈的疾病。virtually事实上，几乎。almost差不多，几乎。mostly主要地；通常。totally完全地。completely完全地。