A.

参考答案:(1)将原方程通分得2(1-2x)-(x-1)=6 化简得-5x=3即x=-3/5. (2)原方程可化为-5x=15解得x=-3.
(1)将原方程通分,得2(1-2x)-(x-1)=6 化简,得-5x=3,即x=-3/5. (2)原方程可化为-5x=15,解得x=-3.
查答案就用赞题库小程序 还有拍照搜题 语音搜题 快来试试吧
无需下载 立即使用

你可能喜欢

A、可以用来进行高层次的、复杂的学习结果的测量
B、可以增进学生的思考、应用及解决问题的能力
C、可以增进学生的写作能力
D、试题的编制比较容易,并且受猜测因素的影响很小

A、主体性原则
B、实现多目标原则
C、主动性原则
D、情感需求原则
E、开放性原则

A、供应商
B、生产者
C、商人中间商
D、代理中间商
E、最终消费者或用户

A.”,
B.Americans
C.Americans
D.Americans
E.Americans
F.A.sick
B.sorry
C.uneasy
D.embarrassed
Which
G.The
H.
B.Many
I.
C.It
J.
D.When
K.
If
L.she
M.she
N.she
O.she
P.guide-book
Q.book
R.notice
D.short

Long bus rides are like television shows. They have a beginning, a middle, and an end-with commercials thrown in every three or four minutes. The commercials are unavoidable. They happen whether you want them or not. Every couple of minutes a billboard glides by outside the bus window. “Buy Super Clean Toothpaste. ” “Drink Good’n Wet Root Beer. ” “Fill up with Pacific Gas. ” Only if you sleep, which is equal to turning the television set off, are you spared the unending cry of “You Need It Now! ”
The beginning of the ride is comfortable and somewhat exciting, even if you ’ve traveled that way before. Usually some things have changed-new houses, new buildings, sometimes even a new road. The bus driver has a style. of driving and it fun to try to figure it out the first hour or so. If the driver is particularly reckless or daring, the ride can be as thrilling as a suspense story. Will the driver pass the truck in time? Will the driver move into the right or the left-hand lane? After a while, of course, the excitement dies down. Sleeping for a while helps pass the middle hours of the ride. Food always makes bus rides more interesting. But you ’ve got to be carefu of what kind of food you eat. Too much salty food can make you very thirsty between stops.
The end of the ride is somewhat like the beginning. You know it will soon be over and there ’s a kind of expectation and excitement in that. The seat, of course, has become harder as the hours have passed. By now you ’ve sat with you legs crossed, with your hands crossed behind your head. The end comes just at the right time. There are just no more ways to sit.

A.Buses
B.
B.Films
C.
C.Advertisements
D.
D.Gas
E.
What
F.To
G.
B.To
H.
C.To
I.
D.To
J.
The
K.bus
L.driving
M.a
N.no
O.the
P.they
Q.the
R.both
S.exciting
B.comfortable
C.tiring
D.boring

A、生产工具
B、建筑物
C、道路
D、土地

A、教育具有了阶级性、等级性
B、儿童公有公育转变以家庭教育为主
C、特权阶层子弟的教育开始和劳动、社会生活脱节以及流行父权制
D、教育内容复杂化

赞题库

赞题库-搜题找答案

(已有500万+用户使用)


  • 历年真题

  • 章节练习

  • 每日一练

  • 高频考题

  • 错题收藏

  • 在线模考

  • 提分密卷

  • 模拟试题

无需下载 立即使用

版权所有©考试资料网(ppkao.com)All Rights Reserved