The policeman asked him to identify the thief．
A. name
B. distiguish
C. capture
D. separate
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现有一张永久债券．其市场价格为20元，永久年金为2元，该债券的到期收益为（）。
we shonld never content（B级）ourselves with only a little knowledge．
A. convince
B. satisfy
C. comfort
D. benefit
Children accept parents’decisions better_________．
A. until your child has finished speaking．
B. as long as parents show affection．
C. when they decide by themselves．
D. as how．
E. when they are involved in the decision—making process．
F. than their parents．
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