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【单选题】
切牙乳突可作为排上颌中切牙的参考标志是因为A.
切牙乳突位于上颌牙槽嵴最前端
B.
切牙乳突位于上颌腭中缝的前端
C.
切牙乳突的位置终身不变
D.
切牙乳突与上颌中切牙之间有较稳定的关系
E.
牙列缺失后，因上颌唇侧骨板吸收较多，使切牙乳突向后移约1．6mm
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举一反三
【单选题】– Have you got some water to drink? – Here you are. There still some in the bottle.
A.
are
B.
were
C.
is
D.
was
【单选题】Our life is becoming better and better, while in some countries there are still some people ______ from hunger.
A.
suffer
B.
suffered
C.
being suffered
D.
suffering
【单选题】, there were still some tickets available for the concert.
A.
Which was expected
B.
That was expected
C.
As was expected
D.
So it was expected
【简答题】教材P37页案例题第1问
【简答题】There are still some wolves in Scotland
【单选题】关于静息电位的叙述,下列哪一项是错误的
A.
静息电位相当于 K ＋ 的电－化学平衡电位
B.
静息状态下细胞膜对 K ＋ 的通透性增大
C.
静息状态下，细胞膜内为正膜外为负
D.
是由于 K ＋ 外流形成的
E.
K ＋ 跨膜转运的动力是细胞膜内外 K ＋ 的浓度差
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