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【单选题】
关于鼻旁窦的正确说法是:A.
包括额、上颌、筛、下颌
B.
无粘膜
C.
额窦开口鼻道
D.
筛于下鼻道
E.
上颌于中鼻道
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What has happened to the soil?
A.
It has become hard to break.
B.
It has become soft for the plow.
C.
It is going to be baked though hard.
D.
It is going to be an ongoing thing to get worse.
【单选题】What has happened recently has my determination to leave the place in which I have worked since I graduated from university.
A.
decided
B.
strengthened
C.
fixed
D.
chosen
【简答题】什么是图纸幅面?为了合理使用图纸及便于图样管理,国家标准规定了哪五种基本幅面图纸的尺寸?尺寸分别为多少?
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