6.一定溫度下，微生物數(shù)量減少一個(gè)對(duì)數(shù)循環(huán)，稱為

A.D值                                                             B.Z值

C.F值                                                              D.F₀值

7.屬于平衡濃縮的是

A.超濾                                                             B.反滲透

C.納濾                                                             D.冷凍濃縮

8.乳粉的工藝流程為

A.原料乳預(yù)處理→預(yù)熱→均質(zhì)→真空濃縮→噴霧干燥→殺菌→篩粉→包裝檢驗(yàn)→成品

B.原料乳預(yù)處理→預(yù)熱→真空濃縮→均質(zhì)→噴霧干燥→殺菌→篩粉→包裝檢驗(yàn)→成品

C.原料乳預(yù)處理→預(yù)熱→均質(zhì)→真空濃縮→殺菌→噴霧干燥→篩粉→包裝檢驗(yàn)→成品

D.原料乳預(yù)處理→預(yù)熱→均質(zhì)→殺菌→真空濃縮→噴霧干燥→篩粉→包裝檢驗(yàn)→成品

9.屬于蒸餾酒的是

A.啤酒                                                             B.黃酒

C.果酒                                                             D.威士忌

10.易拉罐包裝的主要目的是

A.信息功能                                                      B.方便儲(chǔ)運(yùn)功能

C.保護(hù)功能                                                      D.促進(jìn)銷售功能