仿永乐款
在教育心理学研究中，（）是最基本、最普遍的方法。 测验法。 观察法。 调查法。 个案研究法。
简述铁矿石K、Na含量对高炉冶炼的危害。
新婚房床上饰品的布置应重点突出新婚主题，为了体现婚庆的级别，在床上可用（）和放玫瑰抱枕。 花瓣拼成心形。 图案。 饰物。 喜字。
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.”
32.（） creation。 across。 implement。 before。 members。 began。 turned。 purpose。 overwhelming。 efforts。 friendly。 professional。
计算机辅助设计的含义是利用计算机帮助（）
