按照《企业国有资产监督管理条例》的规定,我国由()代表国家履行出资人职责。
A.国务院
B.地方人民政府
C.国务院和地方人民政府
D.各级人民代表大会
参考答案:C
齿轮传动的传动比取决于()。
A.主动轮转速
B.主动轮与被动轮齿数之比
C.被动轮与主动轮齿顶圆直径之比
D.被动轮与主动轮轴间距离
He went there and has stayed there . [ ]
A. three days ago; for three days
B. for three days; three days ago
C. three days before; three days
D. before three days; three days before