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【单选题】
民用建筑工程验收时，环境污染物浓度现场检测点应距内墙面不小于（）m。A.
0.5
B.
1
C.
1.2
D.
1.5
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【简答题】A．Because marketing groups have collected consumers' information for years. B．Because marketing groups can send messages around the world for free. C．Because people keep down junk mail to a manageable...
【简答题】玄参科地黄属的植物地黄、根不经蒸焙直接干燥后药用为《药典》规定的中药材（），有清热凉血的功效。
【单选题】Why did Myrrayhill wanted to assure consumers of the quality of the shoes?
A.
Because Playboy wanted to assure consumers of the quality of the shoes.
B.
Because producing high--quality shoes needed high skills.
C.
Because consumer preferences had changed and fashion became more important.
D.
because Playboy wanted to sell the shoes at a lower price.
【单选题】下面说明集合 S 上的二元运算 △满足结合律的 是 。
A.
a △ b = b △ a
B.
a △ b = b
C.
a △ a = a
D.
a △ ( b △ c)= ( a △ b ) △ c
【简答题】Consumers are concerned about the changes in the package size, mainly because ________. A) they hate to see any changes in things they are familiar with B) they unit price for a product often rises as...
【简答题】玄参科地黄属的植物地黄、根经蒸焙直接干燥后药用为《药典》规定的中药材（），有（）的功效
【简答题】CC2530 是用于 2.4-GHz IEEE 802.15.4 ZigBee 应用的一个真正的 片上系统 ( SoC )解决方案,内部集成了 类型 CPU 。
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