MPEG视频中的时间冗余信息可以采用（）的方法来进行压缩编码。A．帧间预测和变换编码

（）主管全国出口食品生产企业卫生注册．登记工作。

A.国家质量监督检验检疫总局

B.国家认证认可监督管理委员会

C.卫生部

D.农业部

Greg Woodburn, a student at the University of Southern California, spends a lot of time cleaning sneakers he collected．But soon the shoes will be sent to poor children in the United States and 20 other countries, thanks to Woodburn’s Share Our Soles (S.O.S.) charity．

A high school track star in the town of Ventura, California, Woodburn was treated in hospital for months with knee and hip injuries．

“I started thinking about the health benefits, the friendship and the confidence I got from running,” he says, “And I realized there are children who don’t even have shoes．”

Woodburn gathered up his old sneakers, then asked his friends to donate．His goal was to have 100 pairs by Christmas this year．When he collected more than 500 pairs, he decided to turn the shoe drive into a year-round endeavor．

Back then, the sneakers came from donation boxes at the YMCA and the local sporting goods store and from door-to-door pickups．Woodburn has now set up collection boxes at two high schools, city gym and recreation center．He has started accepting adult sizes and sandals．So far, S.O.S has collected and donated more than 3,000 pairs．

Woodburn has cleaned all the shoes．After sorting the shoes by size, Woodburn selects the good shoes for the washing machine and the worn-out ones for recycling．

To ship the footwear, Woodburn teamed with Sports Gift, a nonprofit organization that provides soccer and baseball equipment to children around the world．Keven Baxter, founder and president, says, “We’d send kids balls and shoes．I've heard that for many of these kids, these old sneakers are the only shoes they had．They wear them to school and to do sports．So Greg’s running shoes were a nice addition for us．”

For many recipients, the shoes represent opportunity．Two young boys in Southern California attended school on alternate days because they shared a pair of shoes．They were too big for one boy and too small for the other．Thanks to S.O.S., each brother received his own pair of shoes．The boys now attend school daily and enjoy their learning．When they graduate, they say, they will help a stranger, just as Woodburn helped them．

小题1:What caused Greg Woodburn to donate old shoes for poor children?

A．The benefits from playing sports．

B．News about some poor children．

C．His reflection to school life．

D．The medical treatment he received．小题2:When collecting more sneakers than expected, Woodburn decided to          ．

A．include adult sizes and sandals

B．set up branches in different cities

C．collect shoes throughout the year

D．expand his endeavor in the whole city小题3:How did Woodburn manage to deliver the shoes collected?

A．By sending them by mail．

B．By working with Sports Gift．

C．By advertising for those in need．

D．By offering them from door to door．小题4:What can we learn from Keven Baxter’s remarks?

A．Sports Gift is popular around the world．

B．Many children need Greg’s old sneakers．

C．Greg’s running shoes are the best gifts for children．

D．International organization should provide more help．

关于线状地物，下列说法错误的有( )。

A．凡是河流，均按线状地物调查

B．图上未标注的线状地物说明其权属尚未调查清楚

C．单线线状地物在实地宽度均匀处量测其宽度到0.1m，并在工作底图对应实地位置打点标记量测点和其宽度值

D．线状地物包括河流、铁路、公路、管道用地、农村道路、林带、沟渠和田坎等

E．线状地物与土地权属界线、地类界线重合时，线状地物调绘在准确位置上，其他界线依层次逐一进行标记

法律的隐含性规定，如种子法第45条规定，种子检验员应经省级以上农业、林业行政主管部门考核合格，是否可以视为设定了行政许可？

采购原材料的交货时间宜早不宜迟，因此交货期越早越好。