【单选题】Quitting cigarettes had always been painful for Michele Fenzl, a 55-year-old computer operator from Denver. In 35 years of smoking a pack a day, nothing else could make her at ease. Until ear seeds. L...
A.
the negative effects of ear seeds
B.
the uncertainty of ear seeds
C.
the modern uses of ear seeds
D.
the way of using ear seeds
【单选题】听力原文:W. Today, Mr. Johnson will introduce to us an interesting television program. M: Thank you, Mrs. Adams. The television program I am going to introduce is about the brain. It will be shown on Octo...
A.
A science fiction cartoon.
C.
A movie on personality disorders.
D.
A drama set in New York City.
【单选题】按饲料来源分类,下列属于人工合成饲料的是( )
【单选题】下列饲料原料属于单细胞蛋白质饲料有( )。
【单选题】以下不属于单细胞蛋白质饲料来源的是( )