A:3xy
B:﹣3x2y
C:3xy2
D:3x2y2
下列句子翻译有误的一项是( )
根据汉语意思写单词。
已知a:b:c=2:3:4,且2a+3b﹣2c=10,求a﹣2b+3c的值.
——Would you like tea or coffee?——________ ,thanks. It's hard for me to fall asleep at night after drinking them.