在商品交易中，下列不是商业信用形式的是( )。
A．预收账款
B．应付票据
C．应付账款
D．票据贴现
参考答案：D
When their parents were out on vacation, the house was left ________ Dick. [ ]
A. in charge of
B. in the charge of
C. taking charge of
D. taking the charge of
按传动方式可分为（）和（）。
