A:I practice every day
B:Thank you very much
C:No, I don’t think so
D:Well, it’s not good enough
关于原始大气的说法,不正确的是( )
下列关于胎生、哺乳的叙述,不正确的是( )
9+2=____ 10+1=____ 9+7=____ 10+____=____
9+3=____ 10+2=____ 9+____=____ ____+____=____
9+4=____ 10+3=____ 9+____= ____ ____+____=____
9+5=____ 10+____=____ ____+____=____ ____+____=____
9+6=____ 10+____=____ …… ……