下列关于强、弱电解质的叙述中正确的是( ) A.强电解质都是离子化合物,弱电解质

题型:选择题

问题:

下列关于强、弱电解质的叙述中正确的是(  )

A.强电解质都是离子化合物,弱电解质都是共价化合物

B.强电解质都是可溶性化合物,弱电解质都是难溶性化合物

C.强电解质的水溶液中无溶质分子,弱电解质的水溶液中有溶质分子

D.弱电解质的水溶液的导电能力比强电解质溶液弱

考点:强电解质、弱电解质
题型:选择题

阅读理解。

     The cost of raising a child from birth to age 18 is about $ 160,140! That doesn't even touch college

tuition. For those with kids, this figure might lead them thinking how much they could have banked. For

others, that number might confirm the decision to remain childless.

     But $160,140 isn't so bad if you break it down. It translates into $ 896. 66 a year, $741. 38 a month, or $171. 08 a week. That's a mere $24. 44 a day! Just over a dollar an hour.

     Still, you might think the best financial advice says don't have children if you ever want to be "rich".

It is not.

     What do you get for your $160,140?

     Naming rights.

     Giggles under the covers every night.

     More love than your heart can hold.

     Kisses and hugs.

     Endless wonder over rocks, ants, clouds, and warm cookies.

     A hand to hold usually covered with jam.

     A partner for blowing bubbles, flying kites, and building sandeastles.

     For $160,140, you never have to grow up! You get to finger-paint, carve pumpkins, play

hide-and-seek, and never stop believing in Santa Claus. You have an excuse to keep reading the

Adventures of Piglet and Pooh, watching cartoons , going to Disney movies, and wishing on stars.

     For $160,140, you get to be a hero just for taking the training wheels off the bike, and coaching a

baseball team that never wins but always gets treated to ice cream regardless.

     You get a front row seat to history; to witness the first step, first word, first date, and first time

behind the wheel.

     You get to be immortal(不朽的).

    You get another branch added to your family tree.

    You get an education in nursing, criminal justice and communications that no college can match.

     In the eyes of a child, you rank right up there with God.

     You have all the power to correct a mistake, scare away the monsters under the bed, patch a broken

heart, police a party, and love them without limits, so one day they will, like you, love without counting

the cost.

1. Which of the following is NOT true after you have a child?

A. You enjoy the right to name your children.

B. You never seem to get old.

C. You still need to learn.

D. You get admiration as a parent.

2. By In the eyes of a child, you rank right up there with God, the author intends to say.

A. you are powerful next to God

B. you are the one your children love and trust most

C. you need to behave like a God

D. you keep yourself too far for your children to reach you

3. Which of the following could be the best title of the passage?

A. A dollar, an hour and a child

B. Children and bank

C. Money and parents

D. Fun and children

4. Which of the following could be used as the last sentence to end the passage?

A. Remain childless.

B. Enjoy raising your children.

C. Make a bank for your children.

D. Find a way to be happy.

题型:选择题

已知:Fe2O3(s) + C(s) = CO2(g) + 2 Fe(s)  ΔΗ="234.1" kJ·mol-1

C(s) + O2(g) = CO2(g)                  ΔΗ=-393.5 kJ·mol-1

则2 Fe(s)+ O2(g) = Fe2O3(s) 的ΔΗ

A.-824.4 kJ·mol-1

B.-627.6 kJ·mol-1

C.-744.7 kJ·mol-1

D.-169.4 kJ·mol-1

题型:选择题

施工合同履行中,某隐蔽工程经工程师检验后进行了隐蔽。之后工程师又要求对已隐蔽的工程重新进行检验。检验结果表明该隐蔽工程的施工质量合格,则()。

A.发包人承担全部费用,工期相应顺延 

B.发包人承担全部费用,工期不予顺延 

C.承包人承担全部费用,工期不予顺延 

D.承包人承担全部费用,工期相应顺延

题型:选择题

(1)住院治疗(2)造成车事故(3)朋友聚会(4)罚款(5)酒后驾车()

A.5―3―4―2―1

B.3―1―5―4―2

C.5―4―3―2―1

D.3―5―2―1―4

题型:选择题

物业管理起源于19世纪60年代的( )。

A.美国
B.德国
C.法国
D.英国

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