税收的基本特征是指税收的强制性、无偿性和( )。通常被简称为税收的“三性”。
A．公开性
B．行政性
C．固定性
D．政治性
参考答案：C
His glasses, _____he was like a blind man, were broken.
A．with which
B．with it
C．without which
D．without it
艾宾浩斯遗忘曲线解释的遗忘规律是
A．先慢后快
B．先快后慢
C．匀减速变化
D．匀加速变化
