單項(xiàng)選擇題下列哪個(gè)物質(zhì)不是食鹽中的水溶性雜質(zhì)()

A.硫酸鈣
B.硫酸鎂
C.硫酸鋇
D.氯化鈣


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3.單項(xiàng)選擇題《食用鹽》衛(wèi)生標(biāo)準(zhǔn)規(guī)定,精制鹽中水不溶物含量應(yīng)()

A.≤0.1g/100g
B.≤0.4g/100g
C.≤0.5g/100g
D.≤1.0g/100g

4.單項(xiàng)選擇題《食用鹽》衛(wèi)生標(biāo)準(zhǔn)規(guī)定,普通鹽中水不溶物含量應(yīng)()

A.≤0.1g/100g
B.≤0.4g/100g
C.≤0.5g/100g
D.≤1.0g/100g