分泌期早期是月经周期第________日;分泌期中期是月经周期第________日;分泌期晚期是月经周期第________日。
参考答案:5~19;20~23;24~28
小题1:It’s reported that Chinese couples can have their (two) child if one of them is an only child.
小题2:I don’t think Jim does (badly) of all the students in the race.
小题3: He is such a(an) (polite) boy that nobody likes him.
小题4: Millie never copies others’ homework and she always does it by (she).
小题5:We all know the ticket price of tourist attractions is high. (hope), all the places of interest in Nanjing will be open to local people for free soon.
PVA高压一次都有电流互感器,其主要作用是什么?