【判断题】按脂肪酸饱和程度分为饱和脂肪酸、单不饱和脂肪酸、多不饱和脂肪酸(PUFA)。()
【简答题】油脂加工过程中的氢化反应会使多不饱和脂肪酸增多而单不饱和脂肪酸减少。 ( )
【单选题】机车车轮联动装置中,为了使机构能够顺利通过死点位置继续正常运转,采用的办法是( )。
【简答题】The advertising company recently hired a designer ____________had once won a prize in a national contest. A) whose B) which C) whom D) who
【单选题】The people at the party were worded about Jane because no one was aware ______ she had gone.
【单选题】通信行业标准中,定向天线下顷角误差不大于()
【单选题】Your math instructor (would have been) happy to give you a makeup examination (had you gone) and (explained) that your parents (had been) ill at the time.