严密性试验压力为设计压力的（）倍且不小于（）MPa。A．1．5：0．6 B．1．25

摄氏温度把标准大气压下______的温度规定为0℃，把______的温度规定为100℃．冰的熔点是______℃．

阅读理解。

     Very often, new-born babies are not beautiful. They are wrinkled (多皱的) or hairless, or they have an

angry look on their faces. They seem to say, "Get away! I hate everybody." But to a parent, that hairless,

wrinkled, angry-faced baby is the most beautiful and perfect (完美的) child in the world. When that proud

father or mother asks you, "Well, what do you think … isn't she beautiful?" what are you going to say? Is this

the time for the truth? Of course not!

     When you look at that proud father, you should say, "Yes, she is! She's really a beauty. She's one in a

million. She's going to be a movie star! She's as beautiful as a picture."

     In English, this is a white lie. White lies don't hurt people. They are not cruel (残忍的) or angry words.

People use them to make a difficult thing a little easier. When people don't want to meet someone, or eat

something new that they really don't like at a friend's house, they tell a white lie. They are trying to be kind.

They feel that being kind is sometimes more important.

1. Parents are usually ________ when their new babies are born.

A. angry

B. proud

C. sad

D. surprised

2. When a parent asks what you think of their new baby, they want you to _________.

A. tell the truth

B. say what you like

C. tell lies

D. say good words

3. From the passage we can know that __________.

A. a new-born baby hates everyone around her

B. a new-born baby is the most beautiful one

C. people who tell white lies are not kind

D. people who tell white lies want to be kind

4. Which of the following is a white lie?

A. You broke the window but you say you didn't.

B. You know Jack has stolen a watch but you say you don't.

C. You don't think his first drawing is great but you say it is.

D. You tell a parent that the new-born baby isn't beautiful.

磷酸胆碱

A．人绒毛膜促性腺激素
B．人胎盘生乳素
C．雌激素
D．孕激素
E．前列腺素

一般认为，定影液老化程度达到通透时间已是新定影液通透时间的（）倍时，可认为该定影液失效

A、1

B、2

C、3

D、5

现场使用顶驱的钻机，为保证关井时在钻台面有便于控制的钻杆旋塞，钻开目的层必须采用接单根的方式钻进，钻杆旋塞接在（）。

A.上单根的上端

B.中单根的上端

C.下单根的下端

D.下单根的上端