颧弓
参考答案:
由颞骨的颧突和颧骨的颞突共同组成,全长均可触及。
— ____________ are you going ____________?
— I'm going to paint a picture.[ ]
A. What, to do
B. Where, /
C. When, /
夜间红色信号灯上下摇动,是()信号。