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【单选题】
哪个孕期最容易受放射线、药物、感染及代谢毒性产物或胎内某些病变等因素的影响,不利胚胎发育成长,可致胎儿畸形A.
胚芽期
B.
胚胎期 ( 受精后 3 ～ 8 )
C.
胎儿期
D.
胚胎期 ( 受精后 2 ～ 8 )
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知识点：
皮皮学刷刷变学霸
举一反三
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A.
眼神经和上颌神经的部分分支
B.
上颌神经和下颌神经的部分分支
C.
眼神经和下颌神经的部分分支
D.
上颌神经和眼神经的部分分支
E.
下颌神经和眼神经的部分分支
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【单选题】Do you know if a meeting next Sunday ? A. there was going to have B. there was going to be C. is there going to be D. there will be
A.
1
B.
2
C.
3
D.
4
【单选题】No one had told Smith about ____ a lecture the following day. A. there being B. there be C. there would be D. there was
A.
选择1
B.
选择2
C.
选择3
D.
选择4
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