He had once been           with drug dealings, but evidence found later

proved his innocence.

A．accused

B．sentenced

C．charged

D．tried

按水利工程计价规范附录A，钻孔与灌浆工程中，工程量计算规则按招标设计图示尺寸计算的有效灌浆面积计量的是（）。

A.化学灌浆

B.检查孔灌浆

C.岩石层帷幕灌

D.回填灌浆