TDD帧结构每个子帧由两个长度为()的时隙构成。
A.1ms
B.0.5ms
C.1.5ms
D.2ms
参考答案:B
His daughter was disabled after a serious illness in 2003 and in the last seven years, he
money to help those children like his daughter.
A.has raised
B.has been raising
C.had raised
D.was raising
封闭式基金可以采取溢价发行方式。( )