夏（热）季浇筑混凝土有何基本要求？

图中有可能形成小河的地点是（　　）

A．甲地

B．乙地

C．丙地

D．丁地

阅读理解。

     A few days ago I asked my sons' governess (女家庭教师) Julia to come into my study. "Be seated,

Julia," I said, "Let's settle our accounts. I guess you most likely need some money, but maybe you're

too polite to mention it. Now then, we agreed on thirty dollars a month..."

     "Forty."

     "No, thirty. I made a note of it. I always pay our governess thirty. Well, um, you've been here two

months, so..."

     "Two months and five days."

     "Exactly two months. I made a special note of it. That means you have sixty dollars coming to you.

Take off nine Sundays... you know you didn't work with Tom on Sundays, you only took walks. And

three holidays..."Julia was biting her finger nail nervously, her face red, but-not a word.

      "Three holidays, therefore take off twelve dollars. Four days Tom was sick and there were no lessons,

as you were occupied only with Dick. Three days you had a toothache and my wife gave you permission

not to work after lunch. Twelve and seven-nineteen. Take nineteen off... that leaves. hmm.... forty one

dollars. Correct?"

     Julia's left eye reddened with tears welling up. Her chin trembled; she coughed nervously and blew

her nose, but-still not a word.

     "Around New Year's Day you broke a teacup and a saucer; take off two dollars. The cup cost more,

it was a treasure of the family, but- forget it. Then, due to your neglect (疏忽), Tom climbed a tree and

tore his jacket; take away ten. Also due to your carelessness the maid stole Dick's shoes. You ought to

watch everything! You get paid for it. So, that means five more dollars off. The tenth of January I gave

you ten dollars."

     "You didn't." sobbed Julia.

     "But I made a note of it."

     "Well... if you say so."

     "Take twenty seven from forty one -that leaves fourteen."

     Both her eyes were filled with tears. Beads of sweat stood on the thin pretty little nose. Poor girl!

     "Only once was I given any money," she whispered, her voice trembling,"and that was by your wife.

Three dollars, nothing more."

     "Really? You see now, and I didn't know that! Take three from fourteen.. leaves eleven. Here's your

money, my dear. Three, three, three, one and one. Here it is!"

     I handed her eleven dollars. She took them and pocketed them.

     "Merci (法语: 谢谢)," she whispered.

     I jumped to my feet and started pacing the room. I was overcome with anger. "For what, this-'merci'?"

I asked.

     "For the money."

     "But you know I've cheated you-robbed you! I have actually stolen from you! Why this'merci'?"

     "In my other places they didn't give me anything at all."

     "They didn't give you anything? No wonder! I played a little joke on you, a cruel lesson, just to teach

you... I m going to give you all the eighty dollars! Here they are in the envelope all ready for you... Is it

really possible to be so spineless (懦弱)? Why didn't you protest? Why were you silent? Is it possible in

this world to be without teeth and claws (爪)-to be such a fool?"

     Embarrassed, she smiled. And I could read her expression, "It is possible."

     I asked her pardon for the cruel lesson and, to her great surprise, gave her the eighty dollars. She

murmured her little "merci" several times and went out. I looked after her and thought, "How easy it is

to crush the weak in this world!"

1. While talking to Julia, the wrier expected from her _____.

A. a protest　　

B. gratitude

C. obedience　　　

D. an explanation

2. What shocked the writer was Julia's _____.

A. nervousness in front of her boss

B. acceptance of injustice

C. shyness when talking about money

D. reluctance to express herself

3. The writer said, "Is it possible in this world to be without teeth and claws?" He was actually telling

    the governess _____.

A. to be more aggressive

B. to be more careful in her work

C. to protect her right

D. to live independently

4. At the end of the story, the writer said, "How easy it is to crush the weak in this world!" to show _____.

A. his understanding of Julia's anxiety

B. his worry about Julia's future

C. his concern on the living condition of working-class people

D. his sympathy for the weak

生长因子

除氧器水位上升到2200mm时发出高水位报警同时只联开除氧器溢流阀。

简述故障的具体检测方法。