问题 解答题
有一次同学聚会,他们的座位号是:小王的座位号与下列一组数中的负数的个数相等,小李的座位号与下
列一组数中的正整数的个数相等,6,-7
1
3
,0,-200,+4
1
3
,-5.22,-0.01,+67,
3
7
,-10,300,-24

(1)试问小王、小李坐的各是第几号位置?
(2)若这次同学聚会的人数是小王的座位号的2倍与小李的座位号的4倍的和,请问这次聚会到了多少同学?
答案

(1)6,-7

1
3
,0,-200,+4
1
3
,-5.22,-0.01,+67,
3
7
,-10,300,-24中,

负数有6个,正整数有3个,

故小王坐的各是第6号,小李坐的各是第3号;

(2)6×2+3×4

=12+12

=24(名).

答:这次聚会到了24名同学.

单项选择题

There is virtually no limit to how one can serve community interests, from spending a few hours a week with some charitable organization to practically full-time work for a social agency. Just as there are opportunities for voluntary service (1) (VSO) for young people before they take up full-time employment, (2) there are opportunities for overseas service for (3) technicians in developing countries. Some people, (4) those who retire early, (5) their technical and business skills in countries (6) there is a special need.

So in considering voluntary or (7) community service, there are more opportunities than there (8) were when one first began work. Most voluntary organizations have only a small full-time

(9) and depend very much on volunteers and part-timers. This means that working relationships are different from those in commercial organizations, and values may be different. (10) some ways they may seem more casual and less efficient, but one should not (11) them by commercial criteria. The people who work with them do so for different reasons and with different (12) , both personal and (13) . One should not join them (14) to arm them with professional experience; they must be joined with commitment to the (15) , not business efficiency. Because salaries are (16) or non-existent many voluntary bodies offer modest expense. But many retired people take part in community service for (17) , simply because they enjoy the work.

Many community activities possible (18) retirement were also possible during one’s working life but they are to be undertaken (19) seriously for that. Retired people who are just looking for something different or unusual to do should not consider (20) community service.

16()

A.lime

B.small

C.large

D.big

问答题 简答题