汽油机的一个工作循环由四个冲程组成,如图所示的是其中的 ____冲程.在压缩冲程中,是通过 ____方式增加气体内能的.
【查阅资料】Cu+Fe2(SO4)3=2FeSO4+CuSO4.
在下面一段文字横线处补写出恰当的语句,使整段文字语意完整连贯,内容贴切,逻辑严密。每处不超过15个字。
当今的中国正处于转型期,人们对文明的焦虑和不自信也属正常不过,人们在谴责别人的过错时是否也应该考虑事件的真实性?比如上半年出的“中国游客泰国铲虾”事件,人们对该事件一再谴责,①____。从某种意义上说,这是文明焦虑上的极端情绪表现,它让人变得目光短浅、妄自菲薄。因此,人们在面对一件事时不能妄下定论,需看清背后的真相。当然,从某种层面也能看出,②____。但人们不应把一件小事无限放大,③____。虽然人人都应争做“国家名片”,但个人行为属个人行为,不应由全国人民“背黑锅”。
find, eraser, book, some, a, is, my, too, where, under
This is my desk. Two____ are on it. One is my English book, and the other (另一本) is my math book. You can also see (也能看见)____CDs on the desk. The CDs are ____. My pencil box is on the desk,____. A pen,____ eraser and a ruler ____ in it. The pen is black, the____ is yellow, and the ruler is white. ____ is my pencil? Aha, it's under the desk. Is my computer game ____the desk,too? No, it isn't. Where is it? I can't____it in my room.
Write at least 60 words about the topic ’My Opinion on Having Lessons at Weekends’.(以“双休日上课之我见一为题写一篇不少于60个词的短文,标点符号不占格。)As a Grade Nine student, you have lessons at weekends. Do you think it is a good idea to improve your study? Why or why not? Give at least two reasons to support your opinion.作为一名九年级的学生,你双休日还要去学校上课。你觉得这是提高学习成绩的好办法吗? 请你陈述支持你观点的理由。(至少两条)(注意:短文中不得出现考生的姓名、校名及其它相关信息,否则不予评分。)