【多选题】次级代谢调节中避免分解代谢物的阻遏作用的方式有( )等。
A.
采用混合碳源,而且严格控制混合碳源中快速利用和缓慢利用的碳源的比例
【单选题】Why is K’s farm depicted as suffering from the shortage of water?
A.
It corresponds to the shortage of all the other vital supplies people suffer in the novel.
B.
It shows a time of social upheaval when any material possession is scarce.
C.
Water is the source of life.
【单选题】Why the shortage is most severe in developing countries?
A.
Many of their nurses leave to other countries.
B.
They want to make more money.
C.
They want better working conditions and better chances for career development.
D.
All of the above are right.
【单选题】Why is K’s farm depicted as suffering from the shortage of water?
A.
It corresponds to the shortage of all the other vital supplies people suffer in the novel
B.
It shows a time of social upheaval when any material possession is scarce
C.
Water is the source of life
D.
Scarcity of water is common in South Africa
【简答题】Why does the author say that there is no shortage of ideas and things to buy?
【单选题】Why is there a shortage of cross-border e-commerce talents?
A.
Limitation of language.
B.
High requirements for capacity.
C.
Lack the knowledge of trading rules and characteristics of major platforms.
【简答题】微生物调节其初级代谢的三种方式大致有()、()和遗传控制。
【判断题】当人们利用微生物合成某种代谢产物时,必须打破微生物原有的代谢调控系统,使其在适当条件下建立新的代谢方式,从而使微生物超量积累人们所期望的产物,即产物浓度远远超过细胞正常生长和代谢所需的范围。 C. 不一定
【多选题】Dreamweaver CS5工作窗口中的文档窗口包括______视图。
【单选题】Why is K’s farm depicted as suffering from the shortage of water?
A.
Scarcity of water is common in South Africa
B.
It corresponds to the shortage of all the other vital supplies people suffer in the novel
C.
It shows a time of social upheaval when any material possession is scarce
D.
Water is the source of life