问题
填空题
均匀的固体样品如奶粉,同一批号的产品,采样次数可按()(填公式)决定,所以,200袋面粉采样()次。
答案
参考答案:S=IN/2;10
均匀的固体样品如奶粉,同一批号的产品,采样次数可按()(填公式)决定,所以,200袋面粉采样()次。
参考答案:S=IN/2;10
完型填空。 | ||||
Mrs. Green __1__ shopping every Sunday. Sometimes she buys food __2__ the family, sometimes she buys __3__. She __4__ buying cheap things. Her child Jane likes to go __5__ very much. Every Sunday she goes to __6__ shops. She likes going __7__ her friend Mary. They sometimes buy things. But some- times they __8__ buy anything (任 ![]() very happy. | ||||
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