A.1個(gè)月B.2個(gè)月C.3個(gè)月D.4個(gè)月
A.一B.二C.三D.四
A.液體樣品應(yīng)充分?jǐn)噭颍旌暇鶆蚝蟀创硇匀?br/>B.液體樣品應(yīng)充分?jǐn)噭?,混合均勻后隨機(jī)取樣C.液體樣品應(yīng)充分?jǐn)噭颍旌暇鶆蚝蠓謱尤?br/>D.液體樣品應(yīng)充分?jǐn)噭?,混合均勻后按四分法取?/p>