【单选题】【消耗次数：1】
融合牙是
①
仅限于乳牙
②
仅限于恒牙
③
两牙牙釉质相连
④
两牙牙本质相连
⑤
两牙牙骨质相连
参考答案：
复制
纠错
相关题目
【单选题】
牙釉质和牙骨质在牙颈部相连的关系正确的是（）
①
约30%牙骨质少许覆盖在釉质上
②
约70%釉质和牙骨质端端相连
③
约10%釉质和牙骨质并不相连
④
全部为釉质和牙骨质端端相连
⑤
约30%釉质少许覆盖在牙骨质上
【单选题】
头皮钢针的使用应该仅限于（ ）
①
短期或单剂量的给药
②
静脉推注或滴注持续刺激性药物
③
pH低于5或者高于9的液体或药液
④
渗透压大于600mOsm/L的液体
⑤
肠外营养液
随机题目
【单选题】
We consider it necessary ______ Tom should improve his behavior.
①
which
②
that
③
what
【单选题】
Lily is a good student except ________ she is a little bit careless.
①
where
②
which
③
that
【单选题】
Encouraging the elderly people to participate games is very important.
①
at
②
in
③
with
④
for
【单选题】
Tom won the first prize of oral English contest, which is beyond his ______.
①
reputation
②
contribution
③
expectation
【单选题】
It is said that ______ 2000 factories closed down during the economic crisis.
①
properly
②
approximately
③
. considerably
【单选题】
—How do you feel about your family life? — .
①
Good. It’s a good choice to work there.
②
Not bad. I think it is a good choice to be a full-time mother.
③
Not bad. I have visited their family a lot of times.