单项选择题

设连续且严格单减, ,

则有_______. A.

; B.

; C.

; D.

与

大小不确定.

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Words Wordsor expressions which convey a certain kind of cultural connotationsor associations which may or may not be found in other languages orcultures are called culturally [填空1]words.

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对于完全能观测的下列系统其能观测规范形为（）。A.B.C.D.

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