订单周期是（）的时间间隔。
参考答案：从下单到交货
最大的负整数是（ ）
A．0
B．1
C．-1
D．不存在
—Who knows it?
—Neither he nor I ______ it. You can go to ask Jim. [ ]
A. know
B. knows
C. to know
D. knowing
