所谓均凹法就是使可摘局部义齿的共同就位道平等于缺隙两端基牙的
A.牙长轴
B.牙长轴交角的分角线
C.观测线
D.外形高点线
E.支点线
参考答案:B
根据汉语提示填入正确的单词。
1. Students in Xinjiang go to school from _________ (四月) to _________ (九月).
2. June _________ (一日) is Children's Day. All the children are very _________ (高兴).
3. The _________ (老的) man is _________ (九十) years old now.
为保持坝体的整体稳定性,必须对接缝进行灌浆或设置宽缝回填膨胀混凝土的分缝是()。
A.横缝
B.纵缝
C.斜缝
D.错缝