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【多选题】
徽墨是以( )为主要原料制成的一种主要供传统书法、绘画使用的特种颜料。A.
松烟
B.
桐油烟
C.
D.
胶
E.
漆
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【单选题】关于梅毒螺旋体的致病性与免疫性的叙述正确的是( )
A.
人不是梅毒的唯一传染源
B.
致病因素有内毒素和外毒素
C.
先天梅毒由母亲垂直传给胎儿
D.
后天梅毒的传播途径主要是接触
E.
机体抗梅毒螺旋体的免疫为传染性免疫
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B.
people whose knowledge of science is very limited
C.
the scientific community
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【单选题】Science is a dominant theme in our culture. Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation. They should also have an ...
A.
cultural groups that are formed by scientists
B.
people whose knowledge of science is very limited
C.
the scientific community
D.
people who make good contribution to science
【单选题】Science is a dominant theme in our culture. Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation. They should also have an ...
A.
cultural groups that are formed by scientists
B.
people whose knowledge of science is very limited
C.
the scientific community
D.
people who make good contribution to science
【简答题】Science is a dominant theme in our culture.Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation.They should also have an un...
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