A:(,+∞)
B:(,
C:(0,)
D:(,
如图,⊙O是△ABC的外接圆,∠OCB=40°,则∠A的度数等于( )
— Were you at home _________?
— No, I was at school.
16-6+7=____
“苏维埃国家在原则上不能靠采取如劫掠殖民地或战败国人民一类的龌蹉办法吸收工业化资金的,至于借用外债的这种办法,苏联却没有加以利用的机会……”为改变这种局面苏联采取了( )