【单选题】听力原文:W: Is it snowing out? M: Is it snowing out? Look at my clothes, they're soaked. Q: What does the man mean? (19)
A.
He's looking for his raincoat.
B.
He's soaking his clothes.
C.
He wants to close the window.
D.
He got caught in the snow.
【单选题】听力原文:M: You look absolutely exhausted! W: I know. How do you manage to look so fresh and handsome after eleven hours work? What happened to the man last week?
A.
He met the woman's friend in the street.
B.
He heard from their friend.
C.
He met their friend in the street.
D.
He telephoned the woman' s friend.
【单选题】运用新的组织培养技术和无性繁殖技术能繁殖出某种植物数以百万计的新品种。如果在实验室里运用上述技术进行植物繁殖被证明是经济的,那么,以下有三项都将代表该项新技术好处,除了( )。
A.
由于减少了成熟植物的繁殖过程,该技术将使优良品种更快地更替。
B.
照料那些生长速度变化不大的植物将变得更加容易。
C.
作物的病虫害一旦发作起来,它在基因一致的植物中比在那些发生基因变化的植物中传播得更快。
【简答题】在Windows中,可以利用“计算机”或“_____”来管理文件和文件夹。
【单选题】What w ill the employer look for during the interview?
C.
Your social relations.
【多选题】与传统的种苗繁殖方法相比较,通过植物组织培养技术进行种苗繁殖具有以下优点( )。
B.
培养材料选择广泛,种子、根、茎、叶甚至花均可
D.
可进行培育脱毒苗,而传统的嫁接、扦插、压条等无性繁殖通常不能培育脱毒种苗
【单选题】下列有关有性繁殖和无性繁殖说法正确的是
A.
有性繁殖的繁殖系数小、幼苗生活力和适应性强。
B.
有性繁殖的优点是能保持母株的优良性状,开花早。
C.
无性繁殖以植物营养器官进行繁殖,期间不经过减数分裂和受精作用,因而保持了亲本的全部特性。