在学习了植物的分类后，生物兴趣小组的同学根据玉米、花生、水绵、葫芦藓、肾蕨和马尾松六种植物的特点，按右表的标准进行了分类。其中②和⑥表示的植物分别是

由某县委政法委联合相关部门共同制定的《村规民约》作为“基本模板”,在全县156个中心村逐步推行,各村根据本村特点,经村民大会补充调整增减内容，形成适合本村实际的自我管理“法律”。制定《村规民约》（    ）

①是贯彻落实依法治国方略的内在要求

②有利于实现社会稳定和基层政权的长治久安

③使村民生活、村务工作有章可循、有据可依

④为村民自我管理、自我服务提供法律保障

    More than 6000 children were expelled（开除）from US schools last year for bringng guns and bombs to school，the US Department of Education said on May 8．
    The department gave a report on the expulsions（开除）as saying handguns accounted for 58 per cent of the 6093 expulsions in 1996—97，against 7 per cent for rifles or shotguns and 35 per cent for other types of firearms．
    “The report is a clear sign that our nation’s public schools are cracking down（严惩）”on students who bring guns to school，“Education Secretary Richard Riey said in a statement．“We need to be tough-minded（坚强的）about keeping guns out of our schools and do everything to keep our children safe．”
    In March 1997，an 11-year-old boy and a 13-year-old using hand-guns and rifles shot dead four children and a teacher at a school in Jonesboro，Arkansas．In October，two were killed and seven wounded in a shooting at a Mississippi school．Two months later，a 14-year-old boy killed three high school students and wounded five in Daducab，Kentucky．
    “Most of the expulsions，56 per cent，were from high schools，which have students from about age 13，34 per cent were from junior high schools and 9 per cent were from elementary schools．”The report said．