一个圆锥体底面半径扩大2倍，高缩小2倍，圆锥体积不变。[ ]
错误
His children are well behaved, while ________ of his sister are rude. [ ]
A. that
B. the one
C. those
D. one
在会计实务中，将序时帐和分类帐相结合称为（）。
A．日记帐
B．转账日记账
C．联合账簿
D．特种日记帐
