在用显微镜观察时，视野中有一污点，移动装片和擦目镜镜头，污点都没被移去，那么污点

回顾如图所示“什么情况下磁可以生电”的探究过程，你认为以下说法正确的是（　　）

A．让导线在磁场中静止，蹄形磁铁的磁性越强，电流表指针偏转角度越大

B．用匝数较多的线圈代替单根导线，且使线圈在磁场中静止，这时电流表指针偏转角度大些

C．蹄形磁铁固定不动，使导线沿水平方向运动时，电流表指针会发生偏转

D．蹄形磁铁固定不动，使导线沿竖直方向运动时，电流表指针会发生偏转

阅读理解。

     Recently a young fellow from Sheridan was accused of first-degree murder. The youth was

15 years old when he shot and killed a 79-year-old man while burglarizing (入室盗窃)the man's

home. The victim was a well-respected and much loved Sheridan citizen.

     The crime and punishment are tragedies. It was a tragedy that a wonderful citizen of the city

was shot and killed in his bedroom in the middle of the night. It is another tragedy that the young

man, now 17, will likely spend the rest of his life in prison.

     His mother had largely neglected the young man. Suffering an unhappy marriage life, his mother

sent him to live with an aunt and uncle in Sheridan. The youth really had no activities other than

skateboarding at the skate park.  The circle of friends that the youth had was basically in 1he same

boat: they had little parental love and care in their lives.

     I wonder what would have happened to the young fellow if he had been introduced to the joys

of the outdoors at an early age. Perhaps his life would have taken a different course. Many of us

have learned our outdoor skills by observing our parents, grandparents, aunts and uncles, or some

other adults. Basically, the people who taught us cared for us and wanted to get us interested in

their outdoor activities.

     Parents, grandparents, relatives, and friends of the family need to do the same thing today. We

need to educate our children in outdoor skills. We need to teach them by taking them fishing, hunting,

hiking, birding, horseback riding, and swimming. Most of all, we need to spend time with our children

and show them we care.

     We need to give our youths some healthy outdoor alternatives to the drug and troublemaking culture

that results from too little supervision and too little love. By doing so, perhaps we can avoid further

tragedies.

1. The purpose of the author in writing the article is ______.

A. to call for giving children outdoor experiences

B. to ask to punish children if they break the laws

C. to tell us a tragedy about a young boy

D. to present that too many troubles exist in society

2. What is the author's attitude towards the young fellow?

A. Hateful.      

B. Unconcerned.

C. Ironical.      

D. Sympathetic.

3. From the text we can know the reason for the young fellow's crime is that ______.

A. his mother didn't have a good marriage

B. his aunt and uncle treated him badly

C. he enjoyed skateboarding at the skate park

D. he was short of parental control and love

3. According to the fourth and fifth paragraph, we can know ______.

A. children used to do outdoor activities by themselves

B. parents are always playing with children

C. the boy may have avoided crime if taken care of

D. parents used to ignore their children

完工百分比法

核算质量要达到账账、账款、账据、（）相符。

A.账实

B.账表

C.账折

D.内外账务