【单选题】int a=12,b=13,c; c=(a
【判断题】1985年3月,六届全国人大三次会议正式把“一国两制”确立为中国的一项基本国策。
【单选题】a、b∈R,且|a|<1,|b|<1,则无穷数列:1,(1+b)a,(1+b+b 2 )a 2 ,…,(1+b+b 2 +…+b n-1 )a n-1 …的和为( )
【单选题】Two hours from the tall buildings of Manhattan and Philadelphia live some of the world’s largest black bears. They are in northern Pennsylvania’s Pocono Mountains, a home they share with an abundance ...
A.
gain support from the local community
B.
protect it from irresponsible development
C.
make it a better home for black bears
D.
provide financial security for future generations