通常把银行从事的()交易看作是外汇交易的延伸,因此对其也采用计量单一货币敞口头寸的方法计量其敞口头寸。
A. 股票
B. 矿产品(包括石油)
C. 贵金属
D. 黄金
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The term () linguistics may be defined as a way of referring to the approach which studies language change over various periods of time and at various historical stages.
A. synchronic
B. diachronic
C. comparative
D. historical comparative
汉语音节结构中,不可缺少的音段成分是()
A. 声母
B. 韵头
C. 韵腹
D. 韵尾