【单选题】听力原文:W: Alex, are you going to have a conference call this evening? M: No, Susan. I have another commitment. Q: What does the man mean? (13)
A.
He'll try hard to attend the conference.
B.
He has to go somewhere else.
C.
He doesn't like commitments.
D.
He has forgotten the conference call.
【多选题】新烟碱类杀虫剂的作用机理,下列说法正确的是
A.
与烟碱相比,新烟碱类杀虫剂与作用位点有更强的亲和性 ;
B.
新烟碱类杀虫剂与沙蚕毒素类杀虫剂的作用机理相同;
C.
新烟碱类杀虫剂的作用机制主要是通过选择性控制昆虫神经系统烟碱型乙酰胆碱受体,阻断昆虫中枢神经系统的正常传导 ;
D.
新烟碱类杀虫剂由于它们的疏水性,能够克服离子屏障与靶标位点结合。
【单选题】What else does Susan like to do?
C.
read and write microblogs
【多选题】在Word2010中可以实现的操作是()。
【单选题】What else does Susan like to do?
C.
read and write microblogs