全口义齿排牙时，可作为尖牙远中邻面的标志是（）
A.面部中线
B.口角线
C.磨牙后垫前缘线
D.唇高线与唇低线
E.切牙乳突点前后1mm
参考答案：B
As is known, it was Hu Jintao, _______ president of our nation, who gave ________ lecture at the ceremony of National Day
A．the; a
B．the ; /
C．a; the
D．/; a
苍术、木香和党参均含有( )
A．草酸钙结晶B．挥发油C．皂苷D．淀粉粒E．菊糖
