请从以下四个图形中选出一个与其他三个不同的选项()
A.A
B.B
C.C
D.D
参考答案:D
解析:
A、B、C选项由三段线段或曲线组成,D为两段线段或曲线组成,故选D。
She always looks sad, _____ makes people feel sorry for her.
A.who
B.which
C.that
D.what
分析GIS设备的优越性?