问题 多项选择题

合理安排数控机床的加了工序,确定零件加工的()。

A.定位面

B.基准面

C.夹紧面

D.基准孔

E.加工余量

F.切削用量

答案

参考答案:B, D, F

阅读理解

阅读理解

     "Congratulations, Mr Jones, it's a girl."

     Fatherhood is going to have a different meaning and brings forth a different answer from every man

who hears these words.Some feel proud when they receive the news, while others worry, wondering

whether they will be good fathers.Although there are some men who like children and may have had

considerable experience with them, others do not particularly care for children and spend little time with them.Many fathers and mothers have been planning and looking forward to children for some time.For other

couples, pregnancy was an accident that both husband and wife have accepted willingly or unwillingly.

     Whatever the reaction to the birth of a child, it is obvious that the shift from the role of husband to that

of father is a difficult task.Yet, unfortunately, few attempts have been made to educate fathers in this

remobilization process.Although numerous books have been written about American mothers, only

recently has literature focused on the role of a father.

     It is argued by some writers that the transition to the father's role, although difficult, is not nearly as great as the transition the wife must make to the mother's role.The mother's role seems to require complete

transformation in daily routine and highly innovative adaptation;on the other hand, the father's role is less demanding and immediate.However, even though we mentioned the fact that growing number of women

are working outside the home, the father is still thought by many as the breadwinner in the household.

1. According to the author, being a father________.

A. brings a feeling of excitement to males

B. has a different meaning for those who have daughters

C. makes some men feel proud and others uneasy

D. means nothing but more responsibilities

2. It is stated in the passage that________.

A. some couples are not prepared to have a child

B. young couples do not like children at all

C. young couples do not have much time to take care of their children

D. many couples look forward to having a boy as their first child

3. The transition to the mother's role requires that the wife________.

A. change her lifestyle in a highly innovative way

B. make a complete change in her everyday life to deal with the new situation

C. stay at home to take care of the baby

D. help her husband in his remobilization process

4. Some writers argue that with respect to the change of roles, fathers, compared with mothers, ______.

A. have to shoulder more burdens

B. have to make more difficult adaptations

C. have an easier job to do

D. can usually do a better job

单项选择题