关于税收下列说法正确的是()
A.税收多少与企业经营效果相连
B.公民纳税,国家受益
C.有一定收入的人才能成为纳税人
D.税收分配的主体都是国家,税款都是取之于民
参考答案:D
Most Americans would prefer to keep their problems ______ themselves, and solve their problems ______ themselves.
A.to; by
B.by; to
C.for; to
D.in; on
电力系统中,功率因数为1时,表明负载是容性负载。