成功哪有看起来那么容易？在备考的路上，最有希望通过的人总是最孤独的。这个时候，只要我们坚持初心，持之以恒，才能滴水穿石，获得最终得突破。每日坚持练习两道acca考试题目，坚持下去，你会发现一个不一样的自己~
1.【单选题】The cost of cost of holding an item in stock for one year is $12 and the placing an order is $90. The annual demand for an item of inventory is 2,160 units. What is the economic order quantity, to the nearest unit?
选项：
A. 210
B. 200
C. 190
D. 180
2.【单选题】Which of the following is correct with regard to inventories?
(1) A re-order level can be established by looking at the maximum usage and the maximum lead- time.
(2) Stock-outs arise when too little inventory is held.
(3) Safety inventories are the level of units maintained in case there is unexpected demand.
选项：
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3
