手工矫正时,锤击落点要准,锤面与工件接触要平。( )
参考答案:对
— Can you tell me ______ from here?
— About three miles. [ ]
A. how far it is
B. how much it is
C. how far is it
D. how much is it
按风险产生的原因分类有( )。
A.自然风险
B.社会风险
C.政治风险
D.责任风险
E.经济风险