主页
学科
搜索
账户
常见问题
当前学科:食品生物技术
题目:
单选
在分批发酵时应选择一定生长阶段的发酵液作为原料,当目标成分是初级代谢产物时,那么应选择哪个阶段的微生物菌体()。
A . 指数生长期
B . 减速期前期
C . 减速期后期
D . 静止期前期
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
保持感光效应不变,摄影距离增加1倍,则管电流量应为原来的()
FOCKE350小盒包装机内框纸供给系统主要将内框纸卷切割成单张内框纸并输送到包装位置,剔除()的内框纸。
由于家庭是婴幼儿生活的主要场所,因此()安全检查非常重要。
计划是为了从事某些工作预先规划好的详细方案。这句话是()。
与其他资源相比,人力资源的独特特征包括()。
严重心理问题的特点不包括()。
2007年1月1日,原劳动和社会保障部与公安部制定的()开始施行。
Write down the numbers of the topic sentences in the following passages.①The bright child is patient. ②He can tolerate uncertainty and failure, and will keep trying until he gets an answer. ③When all his experiments fail, he can even admit to himself and others that for the time being he is not going to get an answer. ④This may annoy him, but he can wait. ⑤Very often, he does not want to be told how to do the problem or solve the puzzle he has struggled with, because he does not want to be cheated out of the chance to figure it out for himself in the future. ⑥Not so the dull child. ⑦He cannot stand uncertainty or failure. ⑧To him, an unanswered question is not a challenge or an opportunity, but a threat. ⑨If he can’t find the answer quickly, it must be given to him, and quickly; and he must have answers for everything.
《产品质量法》中规定的“不符合在产品或其包装上注明采有的产品标准”中的“产品标准”是指()。
术后呼吸困难和窒息()