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【单选题】
下列为缩短微生物生长曲线中的延迟期的措施,( )是错误的。A.
采用健壮的对数期生长的菌种
B.
减少接种量
C.
发酵培养基与种子培养基成分和温度尽量接近
D.
增加接种量
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反馈参考答案：
举一反三
【简答题】是中国以外唯一保留完整华文教育体系的国家。
【单选题】In the specific factors model, a 5% increase in the price of food accompanied by a 5% increase in the price of cloth will cause ________ in the welfare of labor, ________ in the welfare of the fixed f...
A.
no change; no change; no change
B.
an increase; an increase; an increase
C.
a decrease; an increase; an increase
D.
an increase; a decrease; a decrease
E.
a decrease; a decrease; a decrease
【简答题】Where is heating element fixed in the scissors It is fixed in the （）of the edges.
【单选题】In the specific factors model, a 5% decrease in the price of food accompanied by a 5% decrease in the price of cloth will cause ________ in the welfare of labor, ________ in the welfare of the fixed f...
A.
no change; no change; no change
B.
an increase; an increase; an increase
C.
a decrease; an increase; an increase
D.
an increase; a decrease; a decrease
E.
a decrease; a decrease; a decrease
【单选题】windows中改变日期时间的操作( )。
A.
只能在系统设置中设置
B.
只能在“控制面板”中双击“日期/时间”
C.
只能双击“任务栏”右侧的数字时钟
D.
不止一种方法可改变它
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