奥林匹克勋章何时设立的？（）
A.1986
B.1976
C.1972
D.1974
参考答案：D
There are a lot of English words that are not spelt __ they sound.
A．in a way
B．by the way
C．the way
D．a way
上、下切牙向唇侧倾斜的角度约为（）.
A.10°
B.15°
C.45°
D.60°
E.70°
