光学量仪具有测量精度高,适用性能好,测量范围大的特点。 ()
Which paragraph offers a possible solution for brain drain?
A. Paragraph 1.
B. Paragraph 2.
C. Paragraph 3.
D. Paragraph 4.
对于同种类、同批次、同等级、同货位、同储存条件下的粮食,一般按200吨扦取1份原始样品,混合后以整个货位作为1个检验样品,每个检验样品代表数量一般为()。
A. 1000~2000吨
B. 2000~3000吨
C. 2500~3500吨
D. 3500~4000吨
We learn from the passage that the push factors are related to______.
A. low employment
B. personal choice
C. tax revenue
D. home countries