A、
They always cause problems to teenagers.
B、
They appear when people get old.
C、
People who have wisdom teeth are wiser.
D、
Wisdom teeth growing into place normally never cause a problem.
【正确答案】
D
【答案解析】
短文开始部分提到，智齿一般是长在口腔后部，它们有时会长在比较正常的位置，这样不会造成什么问题。因此，长在正常位置的智齿不会造成问题。
A、
Because they don't have enough room in the mouth.
B、
Because they are pushed sideways by other teeth.
C、
Because they leave room for bacteria to enter.
D、
Because they fail to break through the gums completely.
【正确答案】
C
【答案解析】
短文中提到，只萌生了一部分的智齿会给细菌留下空间，使细菌侵入牙齿周围，在这种情况下容易引发感染。
A、
When the wisdom teeth completely break through the gums.
B、
When we have wisdom teeth between 16 and 20.
C、
When the wisdom teeth are damaged by other teeth.
D、
When fluid gathers around the wisdom tooth that is below the gum.
【正确答案】
D
【答案解析】
短文中提到了应该拔除智齿的几种情况，其中最后一条是液体在部分或完全萌生的智齿周围聚集的时候也要将其拔除。
提交答案
关闭