【单选题】【消耗次数：1】
关于额外牙的病因，表述错误的是（）
①
牙源性上皮活性亢进
②
甲亢
③
牙板上皮过度增殖
④
颅骨锁骨发育不全
⑤
腭裂
参考答案：
复制
纠错
相关题目
【单选题】
关于牙龈上皮，错误的是（）
①
牙龈由上皮、固有层和粘膜下层组成
②
附着龈位于游离龈的根方
③
覆盖于龈沟壁的上皮称为龈沟上皮
④
龈沟上皮有上皮钉突
⑤
龈谷表面覆盖的是无角化鳞状上皮
【单选题】
引起幼儿牙釉质发育不全的是（ ）
【单选题】
关于牙体组织，以下错误的是（）
①
由釉质、牙本质、牙骨质和牙髓组成
②
釉质构成牙的主体
③
牙中央有一空腔，称髓腔
④
牙体组织有三种界面
⑤
来源于外胚层和外胚间叶组织
【单选题】
关于被覆上皮的特点下列哪项是错误？
①
被覆在身体表面和器官腔面
②
上皮内有丰富的血管
③
具有高度的再生能力
④
细胞形状较规则并排列紧密
⑤
有内胚层` 中胚层和外胚层发生
随机题目
【单选题】
A British man who ____ to play practical jokes ____ his own humorous art work in four major New York museums over the last two weeks.
①
liked；hassecretlyhung
②
likes；hassecretlyhung
③
hadliked；secretlyhung
④
hasliked；secretlyhung
【单选题】
——Are you content with her lecture?
——Nowhere near that. It ____.
①
mayhavebeengood
②
couldn’thavebeenworse
③
couldn’thavebeenworse
④
mustbebetter
【单选题】
Experience is believing. If you’d like to know what it ____ like to be a soldier in World War Ⅱ，____ the game “Brothers in Arms: Roads to Hill 30”.
①
wouldbe；try
②
wouldbe；try
③
wouldbe；trying
④
was；trying
【单选题】
Nothing in my life has meant ____ to me as his praise.
①
asmuch
②
more
③
thatmuch
④
asgood
【单选题】
After the 1980s, the West became Godlike to many Chinese because of ____ Westerners’ wealth, and ____ freedom to do what they wanted.
①
/；/
②
the；the
③
the；/
④
/；the
【单选题】
Shanghai is the first city in the world ____a high-speed maglev train, from the city to Pudong Airport.
①
tobuild
②
tobebuilt
③
tohavebuilt
④
tohavebeenbuilt
【单选题】
The size of the generation gap seems to be spreading with ____ rapid changes in technology, in education, in transportation and in communication that are taking place all over ____ globe.
①
the；the
②
the；/
③
/；/
④
/；the
【单选题】
Never in my wildest dreams ____ lead to a career in the NBA, which has allowed me to give back to my people in Africa.
①
Ithoughtthechancewould
②
Ithoughtwouldthechance
③
didIthinkthechancewould
④
didIthinkwouldthechance
【单选题】
Small as it is, the ant is as much a creature as ____ all other animals on the earth.
①
are
②
is
③
have
④
do
【单选题】
She’s fainted. Throw some water on her face and she’ll ____.
①
comeround
②
comealong
③
comeon
④
comeout