【单选题】______ hot weather! I prefer to stay at home rather than ______. [ ]
【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 prevent 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】患者男,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题转...
【多选题】财务报表分析的基本方法中,用来发现差异的方法的是( )。
【单选题】In the authors opinion,teachers Can only be promotedDepending on________.
A.
how well they give theirlectures
B.
how well they get alongwith the students
C.
how many papers and booksthey have published
D.
how well they conducttheir academic researches
【单选题】The nitrogen content of a sample is 0.60g. How weigh are proteins in this sample?
【单选题】—How do you spell 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...
【简答题】财务报表比较分析法是财务报表分析中最基本的方法。( )