指出下列X线所见乳突类型哪型可有病理意义()
A.气化型
B.硬化型
C.板障型
D.混合型
E.板障型和混合型
参考答案:B
While she _________ TV in the sitting room, the bell________.
A.watches, rings
B.is watching, rang
C.was watching, rang
D.watched, was ringing
投资者买卖封闭式基金必须开立深、沪基金账户卡及资金账户。( )