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【简答题】
给出下列三个命题： ①函数 y= 1 2 ln 1-cosx 1+cosx 与 y=lntan x 2 是同一函数； ②若函数y=f（x）与y=g（x）的图象关于直线y=x对称，则函数 y= 1 2 f(x) 与y=g（2x）的图象也关于直线y=x对称； ③若奇函数对定义域内任意x都有f（x）=f（2-x），则f（x）为周期函数． 其中真命题的是______（填序号）．
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举一反三
【单选题】Which of the following is the most important factor to Adler's success?
A.
Spirit and experience.
B.
Interest.
C.
Confidence and determination.
D.
Purpose and knowledge.
【单选题】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.
the unit price for a product often rises as a result
C.
they have to pay for the cost of changing package sizes
D.
this entails an increase in the cost of packaging
【多选题】CC2530 是用于（ ）应用的一个真正的片上系统（SoC）解决方案，它能够以非常低的总材料成本建立功能强大的网络节点。
A.
2.4-GHz IEEE 802.15.4
B.
ZigBee
C.
RF4CE
D.
视频监控
【简答题】In the author’s opinion，which of the。following is not a factor that causes the corruption of spoken English?
【单选题】按盖尔维斯顿定向遗忘试验,一般认为脑外伤患者脱离了 PTA 应该要求其 GOAT 实际得分达到( )
A.
100 分
B.
75 分
C.
74 分
D.
66 分
E.
25 分
【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...
【单选题】Consumers are not Supposed to threw used computers in the trash because______.
A.
this is banned by the California government.
B.
some parts may be recycled for use elsewhere
C.
unscrupulous dealers will retrieve them for profit
D.
they contain large amounts of harmful substances
【多选题】CC2530 是用于( )应用的一个真正的片上系统(SoC、解决方案,它能够以非常低的总材料成本建立功能强大的网络节点。
A.
2.4-GHz IEEE 802.15.4
B.
ZigBee
C.
RF4CE
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