文章来源:hps:/language.chinadaily.com.cn/a20201108ws517309a31024ad0b8365hm该文主要介绍了各国独特的送礼习俗,==m21.B考查词交猜测。根据第五段 Therefore, whether you' re sending money as a gift ot justleaving a tip, place your money in an envelope to ensure it's received in a respectful man可知 distasteful"与 unpleasant”接近。22C考查细节理解。根据第四段 Despite the kind gesture., thank you cards and notesnot a common part of the gifting custom in Israel. "M"Despite the kind gesture, thankyou cards and notes are not a common part of the gifting custom in Israel"可知:以色列人几乎不送礼或收礼。ne v al ene23.D细节理解题。根据最后一段“Also, gestures of thanks are preferred over verbalreciprocation(E i). These may include jumping up and down, dancing, or whistling可知津巴布韦的人更喜欢用身体语言来表达谢意

9.C【解析】∵P(B|A)+P(B)=P(B|A)+1-P(B)1,∴P(B|A)=P(B),即P(AB)=P(B),∴P(AB)P(A)=P(A)·P(B),∴事件A与B独立.故选C.9.C【解析】∵P(B|A)+P(B)=P(B|A)+1-P(B)1,∴P(B|A)=P(B),即P(AB)=P(B),∴P(AB)P(A)=P(A)·P(B),∴事件A与B独立.故选C.

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