【判断题】【消耗次数：1】
早教育。
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正确
②
错误
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相关题目
【单选题】
关于乳牙早失，说法错误的是（）
①
乳牙早失对恒牙列的影响不大
②
第一乳磨牙早失，如第一恒磨牙已建立中性咬合关系，则牙弓长度不会缩小
③
乳牙早失，继承恒牙6个月之内萌出则影响不大
④
乳牙早失越早，错发生可能性越高
⑤
单纯上颌尖牙或下颌第二前磨牙错位常与第二乳磨牙早失有关
【单选题】
关于乳磨牙早失后间隙丧失速度的影响因素，描述错误的是（）
①
乳牙缺失时的年龄越小，间隙丧失的程度越大
②
牙弓越拥挤，间隙丧失的程度越小
③
与乳切牙、第一乳磨牙早失相比，第二乳磨牙早失可以导致更大的间隙丧失
④
上牙弓乳牙早失比下牙弓乳牙早失产生的间隙丧失更多
⑤
如果牙弓颊侧段牙齿咬合尖窝相对，那么间隙丧失量会较小
随机题目
【单选题】
Like most July days, it was hot. I stepped into __________ tiny ice-cream shop to cool off with _________ chocolate sundae(圣代冰淇淋).
①
the; /
②
a; a
③
/ ; the
④
the; the
【单选题】
The reason _____ he was late for the meeting is _____ his car broke down on the road.
①
why; that
②
why; because
③
that; that
④
for which; because
【单选题】
During the Second World War, once before, the U-boats had been _____ because of air attack.
①
in trouble
②
in the trouble
③
for trouble
④
within trouble
【单选题】
After five hours’ drive, they reached ___________they thought was the place they’d been dreaming of.
①
that
②
where
③
which
④
what
【单选题】
Although only of __________ intelligence, he speaks four languages fluently.
①
average
②
middle
③
mean
④
normal
【单选题】
Computer classes must be __________ to every student of all grades, which will make them have a good command of the modern communication and learning tool.
①
accessible
②
avoidable
③
valuable
④
acceptable
【单选题】
Peter’s mother kept telling him that he should give up smoking, but _____ didn’t help.
①
he
②
which
③
she
④
it
【单选题】
Not until he went through real hardship the love we have for our families is important.
①
had he realized
②
did he realize
③
he realized
④
he had realized
【单选题】
—I knocked over my coffee cup. It went right over _____ keyboard.—You shouldn’t put drinks near _____ computer.
①
the; /
②
the; a
③
a; /
④
a; a
【单选题】
The letters for the boss __________ on his desk but he didnt read them until three days later.
①
were put
②
was put
③
put
④
has put