According to the passage, the cold of winter ______.
A.improves the ability to think
B.is the best time for thinking
C.is better for thinking than is very warm weather
D.incerases the ability to think
第7题
A.2005.4.1我国的《电子签名法》正式实施
B.电子货币与纸币不具有同等的法律效力
C.与纸币相比,电子货币容易被抢劫或被偷盗
D.与支票相比,电子货币不容易被冒领和盗用
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