当给定显著性水平a=0.55时,参数θ的置信区间P{θ1≤θ≤θ2}=()。 ["0.95","0.975","1.96","0.45"]
根据《认证认可条例》,认证认可活动应当遵循() ["客观独立","公开公正","平等合理","诚实信用"]
《京华时报》的创始人是()。 ["黄菊芳","罗同松","谢朝晖","张锐"]
注释法学派的代表人物有()。 ["伊纳留","阿佐","巴尔多鲁","阿库修斯"]
选用酸性焊条(如E4303)焊接金属构件时,可选用的电源种类是() ["A.直流正接","B.直流反接","C.交流电源焊接","D.无所谓"]
中国人为什么把自己称作“龙的传人”?