中华书局
平均利润和生产价格理论（） 揭示了等量资本获得等量利润时剩余价值在各部门资本家之间重新分配。 为分析资本主义企业利润、利息、地租提供了理论前提。 揭示了剩余价值的来源和实质。 表明了生产价格是价值的转化形式。 表明了资本家剥削雇佣工人的程度。
阻抗
房地产特性
Melissa Poe
Melissa Poe was 9 years old when she （31） a campaign for a cleaner environment by writing a letter to the then President Bush. Through her own efforts， her letter was reproduced on over 250 donated billboards （广告牌） （32） the country.
The response to her plea help was so （33） that Poe established Kids For A Cleaner Environment（Kids F.A.C.E.）in 1989. There are now 300，000 （34） of Kids F.A.C. E. worldwide and is the worlds largest youth environmental organization.
Poe has also petitioned the National Park Service to （35） a "Children's Forest" project in every national park. In 1992， she was invited as one of only six children in the world to speak at the Earth Summit in Brazil as part of the Voices of the Future Program. In 1993， she was given a Caring Award for her （36） by the Caring Institute.
Since the organization started， Kids F. A. C. B. members have distributed and planted over 1 million， trees! Ongoing tree-planting projects include the （37） of Kid's Yards-backyard wildlife habitats（栖息地） -and Kid F.A. C. E. is involved in the exciting Earth Odyssey， which is a great way to start helping.
"Starting the club （38） out to be a way to help people get involved with the environment -club members started doing things like recycling， picking up litter and planting trees as well as inviting other kids to join their club."
"We try to tell kids that it's not OK to be lazy，" she explains."You need to start being a responsible， environmentally （39）person now， right away， （40）you become a resource-sucking adult.”
38.（） creation。 across。 implement。 before。 members。 began。 turned。 purpose。 overwhelming。 efforts。 friendly。 professional。
欧洲中世纪的大学课程中，不属于低阶的是（）。
