下列有关果实和种子形成的叙述，错误的是（  ）

根据枸杞产量与气候条件的关系，把宁夏划为枸杞的适宜、次适宜和不适宜种植区，从而为枸杞种植的合理布局提供了参考依据。读图完成下面小题。

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（3分）
茫茫沙漠，滔滔流水，于世无奇。唯有大漠中如此一湾，风沙中如此一静，荒原中如此一景，荒坡中如此一跌，才深得天地之韵律，造化之机巧，让人神醉情驰。以此推衍，人生、世界、历史，莫不如此。                 ，                  。惟其这样，                     ，                     ，                    。
①给高滔以平实，给粗犷以明丽   ②给浮嚣以宁静，给急躁以清冽
③世界才显精致      ④历史才有风貌         ⑤人生才见灵动

In Chongqing, you can often see many people dance outside together if it ________ in the evening.

    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．