【单选题】下列有关α螺旋的叙述哪个是错误的?
C.
在某些蛋白质中,α螺旋是二级结构中的一种类型
【单选题】在下列选项中,属于言语运动中枢部位的是( )
【简答题】My parents went out last night and I stayed at home a________( 独自一人 ).
【单选题】在下列选项中,属于言语运动中枢部位的是( )
【单选题】下列有关α螺旋的叙述哪个是错误的
D.
在某些蛋白质中,α螺旋是二级结构中的一种类型
【单选题】听力原文:W: I can't understand why Linda didn't call me. M: She did. Didn't I tell you? She said she couldn't come for dinner, because she lost her train to come back. Q: What did the man say about Linda?...
A.
Linda wouldn't call the woman again.
C.
Linda would call next time.
D.
Linda couldn't come for dinner because she lost her train.
【单选题】A wonderful idea suddenly occurred to me _______ I would turn to the reference book to finish my homework
【单选题】I didn’t understand the ______question, so there was a ______expression on his face. [ ]
【简答题】Last Christmas was a very difficult time for me. My family and all of my close friends were back home in Florida, and I was all alone in a rather cold California. I was working too many hours and beca...