下列不属于系统软件的是
A．UNIX
B．QBASIC
C．Excel
D．FoxPro
参考答案：C
解析： Excel属于应用软件中的一类通用软件。
甲、乙、丙三段铁丝，甲、乙的粗细相同但甲比乙长，乙、丙的长度相同但乙比丙细，则甲、乙、丙的电阻大小关系为（ ）
A．R甲＞R乙＞R丙
B．R甲＜R乙＜R丙
C．R甲＜R乙=R丙
D．无法判定
Li Ming said he_____playing computer games. [ ]
A. was interesting to
B. was interested to
C. was interesting in
D. was interested in
