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阴离子隙(名词解释)

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For our hotel guests, the various facilities including the sauna and indoor swimming pool

A. available
B. subsequent
C. enjoyable
D. admittable

A．responsibleB．possibleC．capableD．forbidden

A. responsible
B. possible
C. capable
D. forbidden

The conference center______the stock holders meeting will be held is situated close to the

A. which
B. when
C. where
D. in that

某套利者以163200元／吨的价格买入1手铜期货合约，同时以63000元／吨的价格卖出1手铜期货合约。过了一段时间后，将其持有头寸同时平仓，平仓价格分别为63150元／吨和62850元／吨。最终该笔投资的价差()元／吨。

A. 扩大了100
B. 扩大了200
C. 缩小了100
D. 缩小了200