A:若∠1=∠2,则AD∥BC
B:若∠1=∠2,则AB∥CD
C:若∠A=∠3,则AD∥BC
D:若∠3+∠ADC=180°,则AB∥CD
I will go there tomorrow unless it rains. The underlined sentence means “ ”
— I'd like some noodles, please.
很多果树利用如图所示的方式繁育优良品种,这种方式称为( )