My uncle and my aunt __________ a new baby.
A:have
B:has
C:is
①所含的分子数目之比为1:1
②所含的O原子数目之比为1:2
③所含的原子总数目之比为2:3
④所含的C原子数目之比为1:1
⑤所含的电子数目之比为7:11.
—What language does the woman speak?
—She speaks____________. She' s from Australia.