—Did you watch the football match on TV last night? —I wanted to, but my mother her favorite TV programme.
A:watches
B:watched
C:was watching
D:had watched
按下列提示,写句子(至少五句)。 >
In America
In China
speak English
speak Chinese
have fast food
have Chinese food
The capital: Washington D.C.
the capital: Beijing
扩句。
①奶奶打水。
②天气热。
如图,己知△ABC,任取一点O,连AO,BO,CO,并取它们的中点D,E,F,得△DEF,则下列说法正确的个数是( )
①△ABC与△DEF是位似图形; ②△ABC与△DEF是相似图形;
③△ABC与△DEF的周长比为1:2;④△ABC与△DEF的面积比为4:1.
在连接串联电路与并联电路时,不正确的是( )
我国居民消费结构不断升级的根本原因是( )