内螺纹圆锥销可用于其中一件为盲孔的定位。
参考答案：对
Today is my birthday and my mother is ______ a cake ______ me. [ ]
A. making, to
B. making, for
C. doing, to
D. doing, for
具有抗流感病毒作用的抗震颤麻痹药是：
A．卡比多巴B．司来吉兰C．金刚烷胺D．左旋多巴E．溴隐亭
