單項(xiàng)選擇題

我國(guó)遺傳因素占錯(cuò)畸形的()

A.29.4%
B.91.2%
C.90%
D.50%
E.25%


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1.單項(xiàng)選擇題固定矯治時(shí)釉質(zhì)脫礦發(fā)病率為()

A.29.4%
B.91.2%
C.90%
D.50%
E.25%

2.單項(xiàng)選擇題

口腔不良習(xí)慣占各類(lèi)錯(cuò)畸形的()

A.29.4%
B.91.2%
C.90%
D.50%
E.25%

3.單項(xiàng)選擇題6歲時(shí)神經(jīng)系統(tǒng)發(fā)育達(dá)到()

A.29.4%
B.91.2%
C.90%
D.50%
E.25%

5.單項(xiàng)選擇題

骨性Ⅲ錯(cuò)ANB角為()

A.140°~160°
B.130°~140°
C.120°~125°
D.125°
E.<0°

6.單項(xiàng)選擇題新生兒下頜角為()

A.140°~160°
B.130°~140°
C.120°~125°
D.125°
E.<0°

7.單項(xiàng)選擇題成人下頜角為()

A.140°~160°
B.130°~140°
C.120°~125°
D.125°
E.<0°

8.單項(xiàng)選擇題3歲時(shí)下頜角為()

A.140°~160°
B.130°~140°
C.120°~125°
D.125°
E.<0°

9.單項(xiàng)選擇題12歲時(shí)下頜角為()

A.140°~160°
B.130°~140°
C.120°~125°
D.125°
E.<0°

10.單項(xiàng)選擇題

由頰舌兩個(gè)臂和支托組成的包繞基牙三個(gè)或四個(gè)軸面的卡環(huán)為()

A.正型卡環(huán)
B.連支卡環(huán)
C.長(zhǎng)臂卡環(huán)
D.連續(xù)卡環(huán)
E.環(huán)形卡環(huán)