【单选题】 Could I have a cigarette? I seem to of them.
【单选题】I appreciate your hard work,but I can not have a ________ that you will surely get promoted. [ ]
【单选题】等电聚焦电泳根据蛋白质的何种特性将其分离
【简答题】4. Brad: I have a guitar. It is my favorite
item, and my ________ ( mother
/ father ) gave it to
me.
【单选题】Of all the destinations in the South,Gu Langyu is the very one ________I have been longing to visit.
【单选题】— Have you ever been to Mount Gu, Michael? — No. I've _____ been there. [ ]