试题 1:1. 抽查10件产品,设_A_={至少2件次品},则 _A_=(???? )(A){至多2件次品}????????? (B){至多1件次品}(C){至多2件正品} ???????? (D){至少2件正品}: d; a; b; c
答案1:b
答案2:d
答案3:d
试题 1:1. 抽查10件产品,设_A_={至少2件次品},则 _A_=(???? )(A){至多2件次品}????????? (B){至多1件次品}(C){至多2件正品} ???????? (D){至少2件正品}: d; a; b; c
答案1:b
答案2:d
答案3:d
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