第9题: [单项选择](A number of) endangered (species) (increases) every year and natural (resources disappear.) A. A number of B. species C. increases D. resources disappear 参考答案:A 答案解析:短语用法错误,应改为The number of a number of“许多、大量的(修饰可数名词)”; the number of“…的数目”。“增长”的应是“物种的数目”,而不是“许多物种”,所以