《会计法》规定，业务收支以人民币以外的货币为主的单位，可以选定美元作为记账本位币。()
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打击报复会计人员的，处3年以下有期徒刑或者拘役。()
A. 正确
B. 错误
税收优于无担保债权是无条件的，也就是说税收优先于所有的无担保债权。对于法律上另有规定的无担保债权，也能行使税收优先权。()
A. 正确
B. 错误
两个正数a，b(a＞b)的算术平均值是其几何平均值的2倍，则与a/b最接近的整数是()．
A. 12
B. 13
C. 14
D. 15
E. 16
Some plants and animals develop superior characteristics so that they may______.
A. help others of their kind get food，shelter and other things needed
B. get into the biological process of adaptation
C. become better adapted to the environments than others of their kind
D. lead to the evolution and production of more and more organisms
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