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【简答题】
加上线索的二叉树称之为____。
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皮皮学刷刷变学霸
举一反三
【多选题】About the development of cardiovascular system, which ones are right( )
A.
derive from mesoderm
B.
vasculogenesis in embryo is earlier than in extraembryonic membrane
C.
endothelial channels are connected with each other in embryo and extraembryo
D.
develop primitive cardiovascular system first
E.
The cardiovascular system is one of the first functional body systems to appear within the embryo
【多选题】Which ones are right about the book My Stroke of Luck ?
A.
It is a candid and heartfelt memoir.
B.
It is about the author's childhood, his wife, his family and the life changing event.
C.
It is only about the eighth decade of his life.
D.
The words in this book are touching, funny, inspiring and uplifting.
【简答题】下面a～e是中学化学实验中常见的几种定量仪器： (a)量筒 (b)容量瓶 (c)滴定管 (d)托盘天平 (e)温度计 （1）无“0”刻度的是 (填写编号)。 （2）下列操作合理的是 (填字母) A．用25mL碱式滴定管量取20.00mLNaHCO 3 B．用托盘天平准确称量10.20克碳酸钠固体 C．用100mL量筒量取3.2mL浓硫酸 D．配制1 mol·L –1...
【单选题】下列有关滴定管的说法错误的是：
A.
滴定时用来准确测量流出标准溶液体积的量器。
B.
管身上面刻有均匀的分度线，下端的流液口为一尖嘴，中间通过玻璃旋塞或乳胶管连接以控制滴定速度。
C.
常用的滴定管标称容量有50ml和25ml两种，最小刻度都为0.1ml，估计读数到0.02ml。
D.
滴定管有酸式滴定管、碱式滴定管及酸碱两用滴定管三种。
【多选题】Which ones are not the right process of double taxation for the stockholders in a C corporation?
A.
Their shares are taxed when they are both bought and sold.
B.
The corporation is taxed on the profits it makes, and the owners are taxed when this profit is distributed to them.
C.
The owners of a corporation are taxed when they receive dividend payments and when they make a profit from the sale of shares.
D.
The corporation must pay taxes on any profits it makes, and the capital raised by the sale of shares is also subject to taxation.
【多选题】A NPN bipolar transistor works in current application condition. which ones are right for the voltage applied relation
A.
VB>VE
B.
VB
C.
VC>VB
D.
VC
【多选题】About the partitioning of primordial ventricle, which ones are right( )
A.
Interventricular septum includes muscular and membranous part
B.
Membranous part is thin, while muscular part is thick
C.
bulbar ridges participate in interventricular foramen' closure
D.
interventricular foramen between the muscular inerventricular septum and endocardial cushions exists short period
E.
the membranous part of IV septum forms earlier that the muscular part
【多选题】Which ones are right statements for a resume? ( )
A.
Resume is a brief account of your life.
B.
Resume should be short.
C.
Resume should long with all your possible information.
D.
Resume should be written with nice outlook and honesty.
【多选题】Which ones are right?
A.
Generally, it is best not to interrupt students during fluency work.
B.
It is wise to let the mistake pass when students got most of his language right.
C.
If there are some common mistakes, the teacher had better correct immediately.
D.
With different teaching focus, the teacher corrects mistakes differently, immediately or not at once.
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