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【单选题】
贵金属产品的风险不包括( )。A.
政策风险
B.
价格波动风险
C.
操作风险
D.
技术风险
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举一反三
【简答题】A．though B．as C．much as D．ever since
【简答题】A．and after B．or after C．ever since D．or since
【单选题】(Ever since) the world (began) nations (have difficulty) in (keeping) peace with their neighbors.
A.
Ever since
B.
began
C.
have difficulty
D.
keeping
【单选题】(Ever since) the world (began), nations (have difficulty) (in keeping) peace with their neighbors.
A.
Ever since
B.
began
C.
have difficulty
D.
in keeping
【简答题】Ever since 1990, the Greens________(live) a peaceful life in this village.
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