在研究弹簧的伸长与外力的关系的实验中,将弹簧水平放置测出其自然长度,然后竖直悬挂让其自然下垂,在其下端竖直向下施加外力F,实验过程是在弹簧的弹性限度内进行的,用记录的外力F与弹簧的伸长量x作出的F﹣x图线如图所示.
I'm Simon from America. I am twelve and I'm at Wllize junior School(初中). This month We have two school events(事件). One is an English party and one is a school trip. Next month, there will be five events.
Here is a list.
Date
Event
May12
School Day
May15-17
English speech
Contest 3:00pm--4:30pm
May18
Volleyball game 2:00--3:30pm
May19
Art Festival 19:00am--5:00pm
May24
Music party 6:00--9:00pm
I'm in the school volleyball club. 1 also like singing. 1 want to play in the volleyball game and sing at the music party. 1'm very happy.
依次填入下列各句横线处的成语,最恰当的一组是( )
①“耻”和“不耻”,是君子人格的封底阀门。如果这个阀门开漏,君子人格将__________;如果这个阀门依然存在,哪怕锈迹斑斑,君子人格还会生生不息。
②一场暴雨过后,田地里的菜苗全都被水冲走了,妈妈的辛苦又__________了。
③小偷溜进谈迁家里,偷走了存放的《国榷》原稿,使谈迁二十多年的心血__________。