金属材料的切削性好坏，取决于材料的比重
参考答案：错
Following the successful Beijing Olympics，Nanjing________70 million people for the 2014 Youth Olympic Games.
A．expects
B．is expected
C．is expecting
D．has expected
治疗梅核气的主方是（）
A.小柴胡汤
B.半夏厚朴汤
C.猪膏发煎
D.甘麦大枣汤
E.大柴胡汤
