恶性变(malignant change)

[单选题]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.” 35.（）

[单选题]患者，男，45岁，确诊慢性肝病1O年，反复鼻出血及皮肤淤斑半年。体检面色灰暗，可见蜘蛛痣，皮肤瘀点，肝肋下未及，脾肋下4.5cm，腹腔积液征阴性。PT为18s(对照为12s)，提示（　）

[单选题]GSM系统采用TDMA，每个载波分为（）时隙。

[判断题]当事人签发票据是基于买卖关系，如果该买卖关系违反法律、法规而无效，不影响票据行为的有效性。（）

[单选题]吗啡禁用于分娩止痛的原因是（）

[单选题]盆腔炎不包括下列哪项炎症性疾病？（　　）

[多选题]患者男，69岁。丙肝后肝硬化24余年。2天前聚餐后出现意识淡漠，行为反常，扑翼样震颤阳性，病情逐渐加重。查体：巩膜黄染，不能唤醒，腱反射和肌张力亢进，血氨230μmol／L。 该患者目前可能出现哪些表现（）。

[单选题]GB/T1576-2008水质标准要求控制锅水的pH为10～12，这样OH－浓度变化了（）。

[单选题]中药饮片处方不包括的内容有（）

[单选题]对于被困在火区的人来说，下列做法中不恰当的是（　　）。