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【判断题】
在指纹识别、脸像识别、虹膜识别、视网膜识别、掌形识别等生物识别技术中,虹膜识别是各种生物特征识别方法中错误率最低的。 ( × )A.
正确
B.
错误
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举一反三
【单选题】Merge the following two short sentences into one new sentence.
A.
Split
B.
Combine
C.
Break
D.
Divide
【单选题】促胰液素能促进胰腺分泌
A.
大量水分和碳酸氢盐，酶含量较少
B.
少量水分和碳酸氢盐，酶的含量也很少
C.
少量水分和碳酸氢盐，酶的含量很丰富
D.
大量水分，而碳酸氢盐和酶的含量很少
E.
大量的碳酸氢盐，水分和酶含量也丰富
【简答题】根据所学课文内容填空 At first my new 1 were difficult to tolerate. The air seemed thin, as 2 its combination of gases had little oxygen left. 3 by a lack of fresh air, my head ached. Wang ping handed a mask to ...
【单选题】In our country the cold weather in the north_____ sharply _____the hot weather in the south.
A.
combines；with
B.
relates；to
C.
compares；with
D.
contrasts；with
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