A:属于实像的是①④⑤
B:属于虚像的是①②③
C:由于反射而成的像是②③⑤
D:由于折射而成的像是②③④
There are all kinds of machines. They 1 in many different ways. One kind of machine is called a computer. A computer can do many things. A computer can do math problems. People can also do math problems. But they cannot do it 2 a computer. Computers remember things. Computers do 3 people tell them. People cannot remember as many things as computers. Computers help tell 4 the weather will 5.Computers help fly rockets and spaceships. These are 6 of ways computers are used. They are used in7 ways. Some computers do just 8 things. Some computers can do a lot of things. There are 9 computers. There are big computers. There may be computers in your school. Do you 10 what they do?
某学校要成立一支由6名女生组成的礼仪队,初三两个班各选6名女生,分别组成甲队和乙队参加选拔.每位女生的身高统计如图,部分统计量如表:
平均数
标准差
中位数
甲队
1.72
0.038
乙队
0.025
1.70
人生就像是一场旅途,我们既可享受春之妩媚、夏之热忱,也会经历秋的萧瑟、冬的沉寂。沿途的风景,我们都别错过。一首歌,一本书;一场细雨,一条曲径;一声响亮的喝彩,一回意外的跌倒……每一种经历都充实着我们的人生。
请以“不错过____”为题,写一篇文章。
要求:①要横线上填写合适的词或短语,将题目补充完整;②除诗歌、剧本以外文体不限;③不要少于600字;④文中不要出现(或暗示)本人的姓名、校名。
如果4x=5y(y≠0),那么下列比例式成立的是( )