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【简答题】
Listen to the passage twice and fill inthe blanks with what you hear.
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皮皮学刷刷变学霸
举一反三
【多选题】How are Cdks stably inactivated in G 1 phase?
A.
During early M phase, when mitosis begins, the cell is awash with active cyclin–Cdk complexes. Those S-Cdks and M-Cdks must be disabled by the end of M phase to allow the cell to complete division and to pr it from initiating another round of division without spending any time in G 1 .
B.
To usher a cell from the upheaval of M phase to the relative tranquility of G 1 , the cell-cycle control machinery must inactivate its inventory of S-Cdk and M-Cdk.
C.
It does so in several ways: by eliminating all of the existing cyclins, by blocking the synthesis of new ones, and by deploying Cdk inhibitor proteins to muffle the activity of any remaining cyclin–Cdk complexes. The use of multiple mechanisms makes this system of suppression robust, ensuring that essentially all Cdk activity is shut down.
D.
This wholesale inactivation resets the cell-cycle control system and generates a stable G 1 phase, during which the cell can grow and monitor its environment before committing to a new round of division.
【单选题】The nitrogen content of a sample is 0.60g. How weigh are proteins in this sample?
A.
16.0g
B.
3.75g
C.
6.40g
D.
6.25g
【单选题】—How do you spell egg? —_________. [ ]
A.
It's an egg.
B.
Yes, it's an egg.
C.
E-G-G.
D.
Egg
【单选题】李某，男性，26岁。自13岁起逐渐表现爱模仿戏装演员动作，喜欢身着戏装，头扎鲜花，抹口红，打扮自己，行为举止女性化。同时容易发脾气，自己的愿望如不能得到满足，就烦躁，甚至打人。变得非常自私，把家里电视机和洗衣机搬至自己的房间，不许别人使用，常紧锁门户，防止他人进入。爱听表扬的话，与人谈话时，总想让别人谈及自己如何有能力，亲戚如何有地位，自己外貌如何出众等，如果别人谈及别的话题，则常常千方百计地将话...
A.
反社会型人格障碍
B.
表演型人格障碍
C.
癔症
D.
精神分裂症
E.
心境障碍
F.
偏执型人格障碍
G.
躁狂症
H.
性心理障碍
【简答题】请简要回答出纳管理的主要功能
【单选题】某二阶欠阻尼系统,当其闭环极点在s平面的分布ωn变大,系统的调节时间变 ;系统的阻尼比ξ变 ;系统的超调量 。
A.
大、小、大
B.
小、大、小
C.
大、不变、不变
D.
小、不变、不变
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