主营业务利润是指企业从事生产经营活动所取得的成果。（）
参考答案：错
解析：主营业务利润指企业从事某种主要生产经营活动所取得的成果。
_____ you may have, you should gather your courage to face the challenge.[ ]
A. However a serious problem
B. What a serious problem
C. However serious a problem
D. What serious a problem
被动自动免疫
