方程x(x+1)(x-32)=0的根是( ) A.x1=0,x2=-1,x3=32

题型:选择题

问题:

方程x(x+1)(x-
3
2
)=0
的根是(  )
A.x1=0,x2=-1,x3=
3
2
B.x1=0,x2=1,x3=-
3
2
C.x1=0,x2=-1,x3=-
3
2
D.x1=0,x2=1,x3=
3
2
考点:一元二次方程的解法
题型:选择题

看到电视中“黑社会老大”过着有钱有势的日子,更有为“兄弟”两肋插刀的义气,中学生王磊心动并模仿。他的行为[ ]

①受到社会上不健康东西的影响

②不能拒绝社会中的不良诱惑

③是可以谅解的

④可能带来不良后果

A、①②③④

B、①②④

C、①②③

D、②③④

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American people like to say "Thank you" when others help them or say something kind to them.People of many countries do so, too.It is a very good habit.

You should say "Thank you" when someone passes you the salt on the table, when someone walking ahead of you keeps the door open for you, when someone says you have you have done your work well, or you have bought a nice thing, or your city is very beautiful. "Thank you" is used not only between friends, but also between parents and children, brothers and sisters.

"Excuse me" is another short sentence they use.When you hear someone say  behind you, you know that somebody wants to walk past you without touching you.It's not polite to break others when they are talking. If you want to speak to one of them, say "Excuse me" first, and then begin talking.You should also do so when you begin to cough or make any noise before others.

Let's learn to say "Thank you" and "Excuse me".

小题1:You  should say ‘Thank you’ when____________.

A.you say something kind to others

B.you help others

C.someone helps you

D.you need others to help you小题2:From the passage we know “Thank you”is_________

A.used in the world.

B.used more often than “Excuse me”

C.used only by Americans.

D.used only between friends.小题3:You should say “Excuse me ”if you want to ________.

A.cough

B.make some noise

C.go first

D.all of the above小题4:When you are going to ask someone to tell you the way, you should say “_________ ”first.

A.Thank you

B.That’t very kind of you

C.Excuse me

D.I’m sorry小题5:This  passage mainly tells us the way__________

A.to be happy

B.to be polite

C.to help others

D.to learn from Americans

题型:选择题

内囊出血所致的对侧肢体运动障碍(偏瘫),主要是损伤了()。

A.皮质脊髓束

B.皮质红核束

C.顶枕颞桥束

D.皮质核束

E.额桥束

题型:选择题

甲将自行车存放于某小区到小区外办事,让小区住户乙将车存放于小区走廊处,并将车钥匙给乙,乙接受钥匙并存车于走廊。虽小区不让停放自行车,但也不过问。该合同的性质属于( )。

A.保管合同

B.委托合同

C.承揽合同

D.行纪合同

题型:选择题

控制电缆在下列哪些情况下可有接头()

A.当敷设的长度超过其制造长度时

B.必须延长已敷设竣工的控制电缆时

C.当消除使用中的电缆故障时

D.当为了方便检修维护时

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