问题

依次填入下列各句的成语，最恰当的一组是（）①为官很难，因为要想干好事业就要，倾注心血，甚至“5+2”“白+黑”地加班加点，日夜操劳。②今年因天气影响，双季槐遇到成穗少、大面积减产等问题。雷茂端为此，正在积极寻求科技突破。③江西省内大大小小200余家老字号，除亨得利、黄庆仁等少数几家著名品牌外，近七成生存困难，__。

A: 煞费苦心惨淡经营殚精竭虑
B: 惨淡经营殚精竭虑煞费苦心
C: 煞费苦心殚精竭虑惨淡经营
D: 殚精竭虑煞费苦心惨淡经营

正确答案是：

同类题型

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