问题
单项选择题
在可摘局部义齿设计中,固位和稳定效果最好的卡环是().
A.双臂卡环
B.单臂卡环
C.圈形卡环
D.间隙卡环
E.三臂卡环
答案
参考答案:E
在可摘局部义齿设计中,固位和稳定效果最好的卡环是().
A.双臂卡环
B.单臂卡环
C.圈形卡环
D.间隙卡环
E.三臂卡环
参考答案:E
用方框中所给的单词的适当形式填空,使短文正确、通顺。每词限用一次。
![]() Thailand's most celebrated festival is the Songkran Festival. It starts on April 13 and小题1:_____________for three days. Songkran is a Thai word which means "move" or change places" as it is the day whenthe sun changes its position. It is also小题2:_____________as the "Water Festival" because people believe that water will wash away the bad luck. The Thai people小题3:_____________ this festival with water . Everyone gets wet and since it is the小题4:_____________season of the year, the custom is quite enjoyable. Songkran is a Public Spring Cleaning Day , supported by the local小题5:____________. Anything old or useless must be thrown away or it will小题6:_____________the bad luck to the owner. During the festival, young people put scented (有香味的)water into the小题7:_____________of elders and parents as a kind of respect. The elders in return小题8:_____________the young people good luck. People also pour water over each小题9:_____________ Thailand is almost completely an agricultural society and this has also been a perfect time to take a小题10:_____________from hard work. |