【单选题】
求图示图形对形心轴的静矩S<sub>ZC</sub>,半圆直径为d。()<br /> <img src="https://nimg.ppkao.com/2018-09/zenglei/2018091410460834143.jpg?sign=a7106a21cbde4600025862eea339c33c&t=62d2b124" /><img src="https://nimg.ppkao.com/2018-09/zenglei/2018091410462235979.jpg?sign=bda4aea37469f6a609e9e0d11987288d&t=62d2b124" />
A、A
B、B
C、C
D、D