复合树脂与银汞合金相比较其优点不包括()。
A.边缘微渗漏小
B.可塑性强
C.温度传导性低
D.美观
E.耐磨性强
参考答案:E
.Their leaders often come to see what difficulty the workers have ____ the plan .
A.to carry out
B.carrying out
C.carried out
D.with carrying out
银两按重量计值,属称量货币。宝银的重量标准是“平”。全国主要的平有:()
A.库平
B.关平
C.漕平
D.市平