客户持同一借记卡可以对应（）个债券托管账户。
A.1
B.2
C.3
D.5
参考答案：A
根据《建筑设计防火规范》，消防车道与材料堆场堆垛的最小距离不应小于()m。
A.15
B.25
C.5
If you are not sure how to use the words, you may ______ the words in your handout.
A．pick up
B．deal with
C．refer to
D．look up
