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【单选题】
关于谷氨酸发酵，下列说法不正确的是（）A.
生产上所用谷氨酸产生菌的种类与Lys产生菌基本一致
B.
其两大类原料的发酵工艺主要区别在于发酵过程是否需要添加青霉素、表面活性剂等
C.
与Lys发酵相比较，谷氨酸发酵要消耗更多的氮源
D.
加晶种起晶时，需要控制溶液的pH，以利于较大结晶颗粒的形成
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