The teenage year from 13 to 19 were the mo

题型:填空题

问题:

The teenage year from 13 to 19 were the most difficult time for me . They were also the best and worse years in my life . At the first, I thought I knew everything and could make decisions by yourself. However, my parents didn’t seem to think such. They always tell me what to do and how to do it. At one time , I even felt my parents couldn’t understand me so I hoped I could be freely from them. I showed them I was independent by wear strange clothes. Now I am leaving home to college. At last, I will be on my own, but I still want to have my parents to turn to whenever need help.

3()

考点:普通高考英语2016年高考英语全国卷3答案_2016年高考英语试题及答案
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“女高音歌唱家”和“男低音歌唱家”,这里的“高”与“低”指的是()

A.音调高低

B.响度大小

C.音色好坏

D.以上都不是

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考察等式:
C0m
Crn-m
+
C1m
Cr-1n-m
+…+
Crm
C0n-m
=
Crn
(*),其中n、m、r∈N*,r≤m<n且r≤n-m.某同学用概率论方法证明等式(*)如下:
设一批产品共有n件,其中m件是次品,其余为正品.现从中随机取出r件产品,
记事件Ak={取到的r件产品中恰有k件次品},则P(Ak)=
Ckm
Cr-kn-m
Crn
,k=0,1,2,…,r.
显然A0,A1,…,Ar为互斥事件,且A0∪A1∪…∪Ar=Ω(必然事件),
因此1=P(Ω)=P(A0)+P(A1)+…P(Ar)=
C0m
Crn-m
+
C1m
Cr-1n-m
+…+
Crm
C0n-m
Crn

所以
C0m
Crn-m
+
C1m
Cr-1n-m
+…+
Crm
C0n-m
=
Crn
,即等式(*)成立.
对此,有的同学认为上述证明是正确的,体现了偶然性与必然性的统一;但有的同学对上述证明方法的科学性与严谨性提出质疑.现有以下四个判断:
①等式(*)成立  ②等式(*)不成立  ③证明正确  ④证明不正确
试写出所有正确判断的序号______.
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排球比赛组织“边一二”进攻战术时,二传队员应站在()号位进行。

A.3

B.6

C.4

D.2

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总分类账户对明细分类账户具有统驭控制作用,明细分类账户对总分类账户具有补充说明的作用。

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客运经营者持道路运输经营许可证依法向( )办理有关登记手续。

A.工商行政管理机关
B.价格主管部门
C.建设行政管理部门
D.消费者协会

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