用放大500倍时测得晶粒度为1级，则相当于标准晶粒度为（）。
A.1级
B.3级
C.4级
D.5级
参考答案：D
The interview with the President was ____ in English. [ ]
A. adjusted
B. conducted
C. participated
D. assisted
( )是政府职能转变的关键。
A．政企分开B．领导人思想观念的转变C．适应经济发展D．公务员体系的完善
