皮皮学，免费搜题
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搜题
【单选题】
下述哪一个是固定药疹的特征( )A.
常对称发生
B.
由光敏感所致
C.
斑贴试验可证实致敏药物
D.
在同一部位可反复发生
E.
剧烈瘙痒
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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】To increase the production, many factories have some new techniques.
A.
brought out
B.
brought in
C.
brought back
D.
brought about
【单选题】Sally was browsing different kinds of skirts at Pop.com. Based on Sally’s action, Little Kite Inc., an apparel company, displayed ads of their various skirts. Which of the following techniques was app...
A.
Perceptual mapping
B.
Test marketing
C.
Behavioral targeting
D.
Shopper marketing
【单选题】____time,Chinese farmers have invented many farming techniques.
A.
Over
B.
In
C.
On
D.
For
【简答题】一个无向图采用邻接矩阵存储方法，其邻接矩阵一定是一个（）。
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