（）在国外有“康熙百科全书”之称。
参考答案：古今图书集成
金属烤瓷固定桥桥体支架应留的瓷层厚度为（）
A.1mm
B.1.5mm
C.2mm
D.2.5mm
E.3mm
The teacher_____have thought Johnson was worth it or she wouldn’t have wasted time on him,I suppose.
A．should
B．can
C．would
D．must
