发育中的正中间隙,在哪个牙萌出后间隙关闭()
A.上颌中切牙
B.下颌尖牙
C.上颌尖牙
D.上颌第一磨牙
E.上颌第一双尖牙
参考答案:C
According to the job advertisement, ______will be given to the candidates with working experience. [ ]
A. presentation
B. profession
C. preference
D. protection
()完成了儒法合流,确立了孔孟儒家学说的统治地位。
A.汉文帝
B.汉景帝
C.汉武帝
D.汉明帝