单选题 Russia is ______ the largest country in the world, covering more than a ninth of the Earth"s land area.
【正确答案】 B
【答案解析】[解析] far from:远非(接形容词),远离;by far:绝对,毫无疑问,确定无疑(常与最高级连用);at first:起初,最初;other than:除……之外,不包括