题目

“9·11”事件后，美国国会议员又遭到“炭疽热”的侵扰。请分析“炭疽热”的病原体属于生态系统的何种成分( ) A．生产者                B．消费者           C．分解者                D．以上都不是 答案：BThis work is _________difficult for us. We need _________people.A．too much; three moreB．too much; other threeC．much too; more threeD．much too; another three