据新闻报道,在英国,一只刚失去幼崽的猫,用自己的乳汁喂养了三只刚出生失去妈妈的小

题型:选择题

问题:

据新闻报道,在英国,一只刚失去幼崽的猫,用自己的乳汁喂养了三只刚出生失去妈妈的小狗崽,“母子”情深亲如一家。对猫的这种行为解释正确的是(  )

①是先天性行为 ②是学习行为 ③是由遗传物质决定的 ④是由环境因素决定的

A.①④

B.②④

C.①③

D.②③

考点:先天性行为和学习行为探究实验:菜青虫的取食行为探究实验:动物的绕道取食
题型:选择题

小张出差时恰逢抄表日,他家电能表示数为,出差返回时发现家中有一盏60W台灯亮着,检查其他电器都已切断电源,再查看电能表的示数为,则小张出差时间长达(  )

A.5天

B.10天

C.30天

D.100天

题型:选择题

易发生贫血性梗死的器官是()

A.肾、肠、脑

B.心、脑、肠

C.心、脾、肾

D.脾、心、肺

E.肾、心、肺

题型:选择题
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
One morning all the employees reached the office as usual.And on the wall they saw a big  on 21  on which was written:Yesterday, the person who has been  22  your growth in this company passed  23  .We invite you to join the funeral prepared in the  24  .
In the beginning,they all got  25  for me death of one of their colleagues. 26  after a while they started getting  27  to know who was the man that limited the growth of his colleagues and the company itself.
The  28  in the gym was such that security agents(保安)were  29  to control the crowd within the room.The more people reached the coffin(棺材),the more the excitement  30  up.Everyone whispered to each other:“  31  on earth is this guy?”
One by one the excited employees got loser to the coffin,and when they  32  inside it,they 33  became speechless。They stood nearby the coffin,shocked and in  34  .as if someone had 35  the deepest part of their soul.
There was a  36  inside the coffin;everyone who looked inside it could see himself, There was also a sign next to the mirror that  37  There is only one person who is  38  to set limits to your growth:IT IS  39  !!!!!! Your life doesn’t change when everyone around you changes.Your life changes when YOU change,when you go beyond your limiting beliefs inside.Don’t be afraid of  40  ;build yourself and your reality.It’s the way you face life itself that makes the difference!
小题1:
A.cardB.postC.signD.1etter
小题2:
A.encouragingB.helpingC.buildingD.limiting
小题3:
A.onB.byC.awayD.down
小题4:
A.officeB.gymC.wayD.meeting room
小题5:
A.sadB.excitedC.afraidD.calm
小题6:
A.andB.butC.orD.so
小题7:
A.readyB.pleasedC.curiousD.serious
小题8:
A.surpriseB.angerC.excitementD.sadness
小题9:
A.admittedB.forcedC.forbiddenD.ordered
小题10:
A.heatedB.wokeC.turnedD.kept
小题11:
A.ⅥmereB.WhatC.HowD.Who
小题12:
A.walkedB.lookedC.gotD.turned
小题13:
A.suddenlyB.graduallyC.merelyD.extremely
小题14:
A.SorrowB.orderC.silenceD.person ‘
小题15:
A.stolenB.touchedC.attackedD.seen
小题16:
A.1etterB.bookC.mirrorD.appeared
小题17:
A.wroteB.readC.showedD.able
小题18:
A.sureB.eagerC.afraidD.able
小题19:
A.YOUB.MEC.HED.ITSELF
小题20:A.punishmentB.praises              C.changes               D.blame
题型:选择题

对已浇筑完毕的混凝土采用自然养护,应在混凝土()开始。

A.初凝前 

B.终凝前 

C.终凝后 

D.强度达到1.2N/mm2以后 

题型:选择题

如何做好学生紧急事件预防?应从哪几个方面入手?

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