结算所结算制度使期货市场不存在潜在的信用风险,提高了期货市场的流动性和安全性。()
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A competitor may submit any number of entries, ______ each one is accompanied by a pack et
A. guaranteeing
B. allowing
C. insuring
D. providing
Everybody should __________ to update himself in order to meet the requirements of future
A. conform
B. fail
C. strive
D. adhere
凡征收了船舶吨税的船舶不再征收车船税,对已经征收车船使用税的船舶,一律征收船舶吨税。
A. 正确
B. 错误