园艺作物标准园创建支持政策所指“规模化经营”是按照标准余额的土壤、空气、灌溉水质量符合安全食品产地环境条件标准要求,集中连片种植()亩以上。
A. 500
B. 800
C. 1000
D. 2000
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调度下达综合命令时应按《河南电力调度规程》中“运行操作规程”的有关规定,由调度()填用综合操作命令票。
A. 运行人员
B. 值班员
C. 值班长
()作为营销客户的重要岗位,主要肩负着客户开发、客户关系的管理与维护、产品销售、市场开拓等职责。
A. 柜员
B. 大堂经理
C. 客户经理
D. 支行长
有人认为,高考是很重要的考试,一年只有一次,应该让迟到考生进场考试。如果以下各项为真,最能削弱上述观点的是()。
A. 不让迟到考生进场,有可能错失选拔优秀人才的机会
B. 高考是很好总要的考试,但并不一定会决定考生的命运
C. 美国的高考——SAT考试,允许迟到的考生进场考试
D. 遵守考场规则与考试的重要性、每年举行的次数无关
Research Is a State of Mind For many years there has been much misunderstanding as to just what research is. The popular conception seems to be that there is something mysterious about it, and before any research can be done it is necessary to have expensive scientific apparatus and large, elaborately equipped laboratories. Actually, this is not so. (6) It is a simple, organized way of trying to accomplish something you wish to do—so simple that anyone can do research anywhere at any time. First, you select the problem you would like to solve, then you list at least ten reasons why it has not been solved. (7) It takes just as much effort to solve a useless problem as a useful one. (8) After carefully—and I want to emphasize that word “carefully”—selecting the problem and the ten things between you and the solution, you then use the same procedure as in solving a crossword puzzle.(9)In the solution of the remaining obstacles you may need some simple apparatus, but the things you will probably need most are infinite patience and persistence. Few people realize the difficulties of doing any new thing. Maybe one of the reasons people are so easily discouraged is because of their education. During all our years at school we were examined two or three times a year. If we failed once, we were out. (10)If we are going to make progress, we must learn to fail intelligently so that we won't become discouraged at the 99.9 per cent failure. 9.()
A. Make sure the game is worth the candle.
B. That is a step in the right direction, but I don't believe it is enough.
C. You take the easy obstacles first and by a process of elimination you eventually arrive at the one or two major ones.
D. But in selecting the problem, you need to be sure to analyze it carefully to see that it is worth the effort.
E. Research isn't a physical thing at all; it's a state of mind.
F. By contrast, all research work is 99. 9 per cent failure and, if we succeed once, we are in.