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【单选题】
RFID标签和读写器天线的极化方式是( )A.
线极化
B.
圆极化
C.
椭圆极化
D.
水平极化
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【简答题】巧手画一画。 把图A按2∶1的比例放大。把图B按1∶2的比例缩小。
【单选题】Section B Directions There are 2 passages in this section, each passage is followed by some question or unfinished statements. For each of them there are four choices marked A B C D.You should decide ...
A.
They are more likely to survive serious diseases today.
B.
Their average life span has been considerably extended.
C.
They have lived long enough to read this article.
D.
They are sure to enjoy a longer and happier live.
【简答题】听录音,按要求把听到的内容记录下来
【简答题】听录音,按要求把听到的内容记录下来
【简答题】听录音,按要求把听到的内容记录下来
【简答题】听录音,按要求把听到的内容记录下来
【简答题】听录音,按要求把听到的内容记录下来
【单选题】Section Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked [A], [B], [C] and [D].You ...
A.
the present high unemployment figures are a fact of life
B.
new jobs .must be created in order to rectify high unemployment figures
C.
available employment must be most widely distributed among the unemployment
D.
available employment should be restricted to a small percentage of the population
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