NO.PZ2021061002000009
问题如下：
Daily Price Limit:
选项：
A.
The exchange rules provide for an expansion
of the limits at any time.
B.
Is used to mange credit risk.
C.
Price limits are exchanged-imposed limits
on how much the contract price can change from the current day’s settlement
price.
解释：
B is correct
价格限制是指对合约价格与前一天结算价格的变动幅度施加的限制。C错
当市场触及价格限制导致交易停止时，被称为锁定限制。通常情况下，交易所规则会扩大次日的交易限额。A错
价格涨跌停限制，保证金制度以及盯市制度是期货合约管理信用风险的三个方法。B对。
a选项怎么翻译怎么理解呢？
