【判断题】高铁客运企业公共关系危机具有突发性、关注性、危害性、复杂性的特点。 ( )
【简答题】实际工作中,具体到会计科目设置,一般是从会计要素出发,将会计科目分为资产、负债、所有者权益、收入、费用、利润六大类。( )
【简答题】已知函数f(x)=sinωx(ω>0)在区间 [0, π 3 ] 上单调递增,在区间 [ π 3 , 2π 3 ] 上单调递减;如图,四边形OACB中,a,b,c为△ABC的内角A,B,C的对边,且满足 sinB+sinC sinA = 4ω 3 -cosB-cosC cosA . (Ⅰ)证明:b+c=2a; (Ⅱ)若b=c,设∠AOB=θ,(0<θ<π),OA=2OB=2,求四边形OACB面积的...
【单选题】The girl went to have piano lessons at the training center with her sister she would stay for an hour.
【单选题】_____ , you failed to open the said L/C as per the terms of the contract.