单项选择题

—Please show me your health code(6码), either on Wechat or Alipay.
—__________. Here it is

A.It’snothing
B.Becarefu
C.Goahead
D.Noproblem
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单项选择题
During the Tang dynasty(唐朝), nearly everything produced in the world __________ on the streets of Chang’an.
A.isfound
B.hasbeenfound
C.willbefound
D.couldbefound
单项选择题
集合M={2,4,6,8,10}，N{x|-1＜x＜6}，则M∩N=（）
A.{2,4}
B.{2,4,6}
C.{2,4,6,8}
D.{2,4,6,8,10}
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