题目

        made the school proud was        more than 90%of the students had been admitted to key universities. A. What; because   B. What; that   C. That; what   D. That; because 答案：B下面的例子中属于生命系统种群层次的是（   ）A．一棵月季花B．一片花园内的月季花C．栽有月季花的一片花园D．一片花园内的月季花、蝴蝶等生物