- UID
- 523978
- 在线时间
- 小时
- 注册时间
- 2010-3-31
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
AI: preserving the natural environment 归根到底是individual person的responsibility,而非government。 AA: The following appeared in the editorial section of a West Cambria newspaper. “A recent review of the West Cambria volunteer ambulance service revealed a longer average response time to accidents than was reported by a commercial ambulance squad located in East Cambria. In order to provide better patient care for accident victims and to raise revenue for our town by collecting service fees for ambulance use, we should disband our volunteer service and hire a commercial ambulance service.”
鼠穴: 1. 已知an=an-1+5, 问a99+1能否被5整除? (1) a100+1能被5整除 (2) a1=-1 2. 已知一数列三个数的variance是0,问这三个数是多少? (1)均值为6 (2)median为6 3.已知数列的标准差为d,问d是多少? (1)数列中至少有俩数不相同 (2)d^2-3d=0 4. 一个不规则的瓶子,瓶子里有液体。下面一部分是长方体(有图),上面一部分是不规则的(就当是瓶颈吧)。。。长方体部分的长宽高分别是a,b,c。当正着放时(即长方体部分在下面),液面高度为d,倒着放时,没有充满液体的部分为5.5ab(这里要仔细读题)。问液体占瓶子总体积的多少?我选B,确定 (1)c=9 (2)d=3.5 其他的题目记不太全了,想起来的话再补充。
语文很杯具,就不误导大家了…… 大家加油!我估计要准备三战了,blessing~~~ |
|