皮皮学，免费搜题
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搜题
【单选题】
牙体缺损修复时，修复体正确恢复牙体形态应包括A.
轴面形态
B.
邻接关系
C.
外展隙和邻间隙
D.
咬合面与咬合关系
E.
以上都需要恢复
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列有关DNA说法不正确的是（）。
A.
DNA是遗传物质的主要载体
B.
DNA是遗传物质的转运体
C.
核酸的碱基是含氮的杂环化合物
D.
DNA的一级结构指的是DNA的双链结构
【单选题】The newly designed trains by JR East
A.
can run at a speed of 360 kilometers an hour.
B.
shine with a dazzling silver color.
C.
look very different from the streamlined models.
D.
have their brakes like dog's ears.
【单选题】The newly designed trains lay JR East ______ .
A.
can run at a speed of 360 kilometers an hour
B.
shine with a dazzling silver color
C.
took very different from the streamlined models
D.
have their brakes like dog's ears
【简答题】DNA的一级结构主要是指()
【简答题】A team of researchers recently created a robot that can repair itself. The newly designed machine can sense injury to itself and adapt. That ability sets the new robot apart from earlier machines. Bec...
【单选题】钢筋混凝土剪力墙墙肢的正截面承载力和斜截面承载力在反复荷载作用下
A.
均下降
B.
正截面承载力下降、斜截面承载力不变
C.
均不变
D.
正截面承载力不变、斜截面承载力下降
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