A:y=kx+k
B:y=kx−k
C:y=−kx+k
D:y=−kx−k
A. a big city B. on foot C. are different from
D. last night E. talked about F. has got
如图,小瓷碗漂浮在水面上,倾斜后能沉入水底,关于这一情景分析正确的是( )
下列做法不利于建立起自尊心和自信心的是( )
He's ____________ friend.