下列工业部门属高新技术产业的是（）
A.石油化工
B.钢铁工业
C.造纸业
D.计算机软件制造业
参考答案：D
—Jane, is this _____ pencil sharpener?
—Yes, it is my sharpener. [ ]
A. her
B. his
C. my
D. your
