男，50岁。金属烤瓷全冠修复，全冠粘固三天后出现疼痛，其主要原因不可能是（） A．牙

不同对象对同一句话的理解是不同的。

阅读理解。

    Go to church, then have a big lunch, then go out to play while mum does the housework. That was a

typical (典型的) British Sunday in the 1960s. But things now could not be more different. 

    Some British sociologists recently studied the typical British Sunday. They found that people get up later

and do less housework than they did 40 years ago. They are far more likely to be out shopping or enjoying

themselves than cooking Sunday lunch. 

    Sunday mornings were busy 40 years ago. Most women caught up on their weekly housework and

cooked a nice lunch. They seldom allowed themselves any "leisure" until afternoon, after the dishes were

cleaned. Then there would be another rush to the table between 5:00 pm and 6:00 pm for tea. But now,

Britons can have brunch (早午餐) at the restaurant. Fewer people bother to cook themselves. "You only

have two free days a week. You don't want to have to waste one because there is nothing to do but watch

boring TV," said Elizabeth Biggs, 25, a producer in London. 

    "On Saturday you are recovering from the week," Biggs added. "Sundays are the last chance for the

weekend - you want to get as much as you can out of the day before you have to go back to work." In

the past, British women usually did their shopping during the week, while the husband was at work. "Now

men seem to do that as much as women," said Jonathan Gershuny, a professor who took part in the study.

    Men also do more housework now on Sundays. Back in the 1960s, men were far more likely to spend

Sundays out of the house at the pub or playing football before lunch.

1. Many Britons have brunch at the restaurant because ______. [ ]

A. They have no time to cook at home.

B. They get up too late.

C. They won't bother to cook themselves.

D. They will go to church.

2. Which of the following is NOT true? [ ]

A. Britons used to go to church on Sundays.

B. Britons usually had a big lunch at home.

C. British women usually did their shopping during the week in the past.

D. British men did little housework at home in the past.

3. The text mainly tells us ______. [ ]

A. what Britons did on Sundays

B. why Britons go shopping on Sundays

C. how Britons spend their holidays

D. the changes of the ways the Britons spend their Sundays

4. What can we infer from the passage? [ ]

A. Men do more housework on Sundays.

B. Sundays in Britain might be very boring in the past.

C. No people go to church on Sundays now.

D. Britons all go out on Sundays.

以下哪项胎儿头皮血pH值是诊断胎儿窘迫的标准（）。

A.＜7.15

B.＜7.20

C.＜7.25

D.＜7.30

E.＜7.35

CR图像处理不包括（）

A.灰阶处理

B.窗位处理

C.伪彩处理

D.数字减影处理

E.X线吸收率减影处理

什么是药物动力学？什么是隔室模型、表观分布容积、生物半衰期及清除率？