下列做法中不正确的是（ ） A．农民在生态系统中扮演的角色是生产者 B．食物链和

A Sports体育运动
Many animals engage in play，but homo sapiens is the only animal (1) have invented sports.Since sports are an invention，a part of culture (2) than an aspect of nature，all definitions of sports are somewhat arbitrary. (3) sports are a human universal found in every known culture or a (4) unique to modern society depends upon one’s definition of sports.Men and (5) have always run，jumped，climbed，lifted，thrown， and wrestled，but they have (6) always performed these physical activities competitively. Although all literate societies seem to (7) contests of one sort or another in which men， and sometimes women， (8) in displays and tests of physical skill and prowess，sports may be (9) defined as physical contests performed for their own sake and not for (10) ulterior end.According to this strict definition，neither Neolithic hunters nor contestants (11) religious ceremonies such as the ancient Olympic Games were engaged in sports. (12) on the stipulation that sports must be performed for their own sake (13) the paradoxical elimination of many activities which are usually thought of as (14) ，such as exercises done for the sake of cardiovascular fitness，races run (15) satisfy a physical education requirement，ball games played to earn a paycheck. (16) definition also means abandonment of the traditional usage in which"sport，"derived (17) Middle English disporter，refers to any light hearted recreational activity.In the. (18) of some 18th- century aristocrats，a game of backgammon and the seduction of (19) milkmaid were both considered good sport，but this usage of the term (20) become archaic.

保险公估机构以欺骗、贿赂等不正当手段取得中国保监会行政许可，并因客观情况，许可决定撤销已无实际意义或不能执行的，对该公估机构处以（）罚款。

A.1万元

B.2万元

C.3万元

D.5万元

召开业主大会会议，应当于会议召开十五日前将哪些内容书面通知业主本人（）

A.会议时间

B.会议地点

C.会议议题

D.会议议程

被称为“天府之国”的成都平原，位于我国的哪个地区：

A．北方地区

B．南方地区

C．青藏地区

D．西北地区

河床的类型不包括（）

A、弯曲型河流

B、游荡型河流

C、分叉型河流

D、环型河流