下面对于温度对发酵过程的影响说法错误的是()
A、影响酶的活性
B、影响培养液的物理性质
C、影响代谢产物的合成方向
D、微生物生长速度加快,死亡变慢
参考答案:D
—Do we have to finish writing the composition today?
—No, you ______. If you can hand them in tomorrow, it will be OK. [ ]
A. needn't
B. wouldn't
C. mustn't
D. shouldn't
重合断面图一般不需要标注,只要在断面图的轮廓线内画出材料图例。()