龋病最好发的牙面是（）
A．颊面
B．腭面
C．舌面
D．面
E．邻面
参考答案：D
The population of the country is 3 million, _____ Kooris.
A．1 % of which were made up of
B．1 % of it were Kooris
C．and 1 % of which were made up of
D．1 % of them were
面
面