问题
单项选择题
测定粮食容重前，要用（）筛试样，去除样品中的杂质。
A、丝网选筛
B、规定选筛
C、大型振动筛
D、小型振动筛
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
测定粮食容重前，要用（）筛试样，去除样品中的杂质。
A、丝网选筛
B、规定选筛
C、大型振动筛
D、小型振动筛
参考答案：B
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| A young man once asked Albert Einstein, the great scientist, 1 the secret of success (成功) is. The scientist told him that the secret of success is 2 work. A few days later the young man asked him the same question again. Einstein was very 3 . He did not say 4 , but wrote 5 words on a piece of paper and handed it 6 the young man. The young man looked at the piece of paper. 7 it was written: A=X+Y+Z. "What does this mean?" asked the young man. "A means success," explained the old scientist."X stands for (代表) hard work, Y stands for good methods (方法), and Z…, Z means stopping 8 and getting down to work." | ||||
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