射线探伤是利用射线可穿透物质、且在物质中有衰减和使胶片感光等特性发现缺欠的常用探伤方

Now some women are spending a weekend at Mother's Camp. There, husbands and children are not allowed. Why would a woman want to take a vacation without her family?

Some women say they need time to be alone.

At Mother's Camp a woman has room to herself. She can sleep, read or watch TV, and no one will bother her. No children will ask, "Mom, what's for dinner?" No husband will say, "Oh, dear, I can't find any clean socks." In fact almost 50% of women in the United States work outside the home. Many of them work full-time and then come home to a second job  -  taking care of their homes and families. These working women say one of their biggest problems is housework.

In the United States, working wives do about 75% of the housework. Many of their husbands say they want to help. But then they burn the rice or they can't find the pans. They ask so many questions that their wives decide it is easier to do the job themselves.

Some women go to Mother's Camp just to get a break from housework. For two days they don't cook, they don't clean, and they don't look after their children and husbands. What do they do? They enjoy warm, sunny weather, walking, swimming or boating in a clear blue lake and sing songs around the campfire. They relax away from home. They have a really wonderful vacation at Mother's Camp !

小题1:Why would some mothers like to be alone?

A．Because they have too many friends.

B．Because they can't get along well with others.

C．Because they are too busy to relax themselves.

D．Because they have no time to do some shopping.小题2:Which of the following is NOT true about Mother's Camp?

A．There are no husbands or children.

B．Women spend two days with their families.

C．Women can sleep, read or watch TV.

D．Women enjoy walking, swimming or boating.小题3:                  is one of the biggest problems for working wives in the United States.

A．Doing chores at home

B．Working outside the house

C．When to take a vacation

D．Looking after their children小题4:From this passage we can see              in the United States.

A．almost all the women work outside the home

B．husbands do as much housework as their wives at home

C．women hate to stay at home with their husbands and children

D．working wives do so much housework that they want to get a rest小题5:What is the best title(标题 ) for this passage?

A．How busy working mothers are.

B．How to buy special gifts for mothers.

C．Mothers relax away from home.

D．Spending a vacation with mothers.

除氧封存养护技术中的除氧剂一般选用

A．镁粉

B．锌粉

C．钙粉

D．活性铁粉

E．硼酸粉

黄连消毒散功效与作用

O型血的红细胞膜上含有（）

A.A抗原

B.B抗原

C.O抗原

D.H抗原

E.D抗原

（二）

某开发商拟开发一栋商住楼，有三种可行的设计方案。甲方案；采用大柱网框架轻墙体系，单方造价1437．8元／m2；乙方案：结构方案同甲，墙体采用内浇外砌，单方造价1108．00元／m2；丙方案：采用砖混体系，单方造价1081．80元／m2。经专家论证设置了F1、F2、F3、F4、F5等五个功能领域，该五项功能指标的重要程度排序为F4>F1>F3>F5>F2经计算甲、乙、丙方案的功能系数分别为0．360、0．344、0．296。

根据五项功能的重要程度，计算F1功能的一对一功能修正得分为（）。

A．1

B．2

C．3

D．4