一只鸡蛋重a克,一只鹅蛋比一只鸡蛋的2倍还多b克,一只鹅蛋是______克.
鹅蛋的重量为:2a+b(克),
答:一只鹅蛋是2a+b克.
故答案为:2a+b.
集合A={y∈R|y=lgx,x>1},B={-2,-1,2}则下列结论正确的是( )
A.A∩B={-2,-1}
B.(CUA)∪B=(-∞,0)
C.A∪B=(0,+∞)
D.(CUA)∩B={-2,-1}
They looked _____ each other and kept their secrets _____ themselves.
A.for; to
B.at; for
C.at; to
D.out; at