It can be inferred from the passage that the mathematical theory of games has been ______.
A. developed by scientists with an interest in genetics
B. useful in explaining some biological phenomena
C. adopted by Hamilton in his research
D. based on animal studies conducted prior to 1930
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出口的货物若是可以享受优惠贸易协定税率的商品，出口前应向我国出口原产地证书签发机构申领原产地证书。属于我国出口原产地证书签发机构的是（ ）。
A. 外汇管理局
B. 商务委等商务主管部门
C. 国家出入境检验检疫局
D. 海关
根据《中华人民共和国知识产权海关保护条例》第32条海关总署（2004）15号公告的规定，知识产权权利人向海关总署申请知识产权海关保护备案，应当为每件备案申请缴纳备案费人民币（ ）元。
A. 500
B. 800
C. 1000
D. 1200
Admiral Cervera knew he was being ordered to certain destruction but felt compelled to obey. He chose the morning of July 3 for a gallant escape attempt.
A. daring
B. futile
C. critical
D. fruitful
According to the passage, successful game strategy depends on ______.
A. the ability to adjust one's behavior in light of the behavior of others
B. the degree of stability one can create in one's immediate environment
C. the accuracy with which one can predict future events
D. the success one achieves in conserving and storing one's resources
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