<p><span style="font-family: 宋体;">在砂型铸造中，铸型的型腔一般是</span><span style="text-decoration-line: underline;"><span style="font-family: 宋体;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</span></span><br/></p><p><br/></p>

1. A. <p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">通过先将模型埋入型砂内，再采取一定手段从型砂中起出模型而得到的</span></span></p>
2. B. <p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">用手工在紧实后的砂块上挖出来的</span></span></p>
3. C. <p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">将型砂块一点点堆砌而得到的</span></span></p>
4. D. <p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">先把模样用型砂包裹住，然后再把模样烧掉而得到的</span></span></p>