《孟子》中“夏日校,殷日序,周日庠,学则三代共之”,其中“校、序、庠、学”都是指( )。
A.教师
B.学校名称
C.私塾
D.六艺
参考答案:B
—Helen, we are taking a boat trip to Hainan this weekend. Would you like to go with us?
—That sounds exciting. I’d like to, but I can’t. _______!
A.Goodbye
B.Very sorry.
C.Have a nice trip
D.I envy you.
循环返矿量不影响烧结矿化学成分。()