前腭杆的前缘应
A.位于上前牙舌隆突上
B.位于上前牙舌侧龈缘
C.离开上前牙舌侧龈缘3mm
D.离开上前牙舌侧龈缘6mm
E.离开上前牙舌侧龈缘10mm
参考答案:D
Chinese differs from western languages ______ it uses characters ______ stand for ideas, objects and deeds.
A.in that; which
B.because of; that
C.in what; which
D.because; /
采用核子密度湿度仪测定沥青混合料面层的压实密度时采用透射法。( )