太平天国在军事上达到全盛时期的标志是（）
A.定都天京
B.太平军东征
C.西征军湖口大败湘军
D.摧毁江南江北大营
参考答案：D
Bob’s salary is three times ______, so John admires Bob very much.
A．as high as that of John
B．as bigger as that of John
C．as high as John
D．as much as John
膝关节常规采用（）
A.层厚1mm，间距1mm
B.层厚2～3mm，间距2～3mm
C.层厚2mm，间距2mm
D.层厚5mm，间距5mm
E.层厚10mm，间距10mm
