一次性发现假人民币（）张（枚）（含）以上，应当立即报告当地公安机关，提供有关线索。
A.5
B.10
C.15
D.20
参考答案：D
3的倒数是______．
The board of the company has decided to ______ its operation to include all aspects of the clothing business.
A. extend B. enlarge C. expand D. amplify
