题目：
V. vocabulary(10)
51. Why he went there is a _________（谜）to me
52. The football match will be held in the Peking Workers’ ________ （体育场）
53. He received a letter saying that his _____________（申请）had been rejected.
54. I remembered the beatings and the ____ （残酷）of the guards when I was in prison.
55. what should be done is to be done ____（适当）
56. Amber has a beautiful yellow-brown colou and it easily melts when ____(加热).
57. The room ____（充当） as a small reception hall for all the applicants.
58.. He has a gift for _______(计算) and likes to solve any mathematical problem.
59 _____（个人观点）, I think good altitude means commitment , professionalism, teamwork spirit and strong will..
60. Economic crisis has _____ （影响）its tourism, which is the major industry in this country.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A, B, C解析：最低备付指结算公司为资金交收账户设定的最低备付限额，结算参与人在其账户中至少应留足该限额的资金量。最低备付可用于完成交收，但不能划出。如果用于交收，次日必须补足。计算公式为：
