Shakespeare is hailed by ( ), contemporary with Shakespeare, as "not of an age, but for all time". A: Ben Jonson B: Christopher Marlowe C: Robert Greene D: Thomas Nash

() made blank verse the principal vehicle of expression in drama. A: Thomas Kyd B: Christopher Marlowe C: Philip Sidney D: Robert Greene

一般而言，面板数据可用固定效应(fixedeffect)和随机效应(randomeffect)估计方法,即如果选择固定效应模型,则利用虚拟变量最小二乘法(LSDV)进行估计;如果选择随机效应模型,则利用可行的广义最小二乘法(FGLS)进行估计(Greene,2000)