乳牙早失引起间隙改变,下列哪项是错误的?() -题库考试答案搜索网

乳牙早失引起间隙改变,下列哪项是错误的?()

单选题

2021-09-01 23:58

A、乳切牙早失,间隙变化较小
B、乳尖牙早失,间隙易变小
C、年龄越小间隙改变越快
D、牙列拥挤严重,间隙容易关闭
E、第一恒磨牙萌出前,第一乳磨牙早失,间隙很少改变

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正确答案

E

试题解析

标签：青书学堂阜新煤炭职工医学专科学校儿童口腔医学

感兴趣题目

翻译：With Average or With Particular Average（WA or WPA）（）

（）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

下列不是乳牙早失的主要原因的是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

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