【单选题】Three years later, Heathcliff returns with and .
【单选题】Two years ______. He married a woman who was three years older than him. [ ]
【单选题】. They got married in 2001 and three years later they ________ their child.
【单选题】He was so diligent that he _____ as a fresher in Qinghua university three years later. [ ]
【单选题】昆虫的腹部一般由()节组成,第()腹节的两侧常具有一对气门。
【单选题】I couldn't sing English songs _____. [ ]
【单选题】( )发电机整流器上用于整流的二极管有 个。
【单选题】I started as ________ office clerk, and turned ________ department manager three years later.
【判断题】昆虫腹部第1-8腹节的两侧常具有一对气门。