I like the hat. You look really cool in it.
A:not very cold
B:not warm
C:wonderful
D:not bad
在平行四边形ABCD中,M为AB→上任一点,则AM→-DM→+DB→等于( )
—Yes, I ________. I'm coming, Dad.
如图为原核生物某基因控制蛋白质合成的示意图,下列叙述正确的是( )