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【单选题】
层和协议的集合称为( )。A.
协议
B.
对等进程
C.
网络体系结构
D.
规程
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举一反三
【简答题】It is important that your homework (do) _________ by yourself, otherwise, you would never know how to do it.
【简答题】被称为中国半导体材料之母的科学家是
【多选题】化学合成,特别是有机合成,有时为了使一个特别的反应发生,通常需进行分子修饰,常用的衍生化方法有( )
A.
基团的保护与去保护,如当进行多步反应时,常常需把一些活泼的、敏感的官能团保护起来,防止发生不希望的反应。
B.
通常为了某种加工需要,需改变某些物质的物理或化学性质。如有时要对物质的粘度、蒸汽压、极性及溶解度等进行暂时的改性以易于加工。
C.
当一个分子中存在几个反应位置时,引入官能团可提高反应的选择性。
D.
在化学过程中应最大限度地避免衍生步骤,减少衍生物,以降低原料的消耗,及对人类健康与环境的影响。
【单选题】思想品德课程标准中“课程内容”的基本特点之一是“以我为中心”,对这一观点的正确理解是
A.
初中学生逐步扩展的生活,尤其是处在青春期的初中学生的身心发展特点是思想品德课程设计的基础
B.
课程标准规定的“课程内容”是可分解、可操作的,可以成为教学活动的线索
C.
“课程内容”是教学评价的出发点和落脚点
D.
思想品德课程内容有机整合了道德、心理健康、法律、国情等四个方面的内容
【单选题】What if you _____ to send an essay with your application? Would you have been rejected?
A.
forget
B.
would forget
C.
had forgotten
D.
should forget
【单选题】Your customer is the applicant for a documentary credit. Which of the following points would appear to be illogical if they appeared on the application form?______.
A.
Invoice price shown as FOB, bills of lading to be marked freight paid.
B.
Last date for shipment one week before expiry date.
C.
Invoice price shown as C&F, but no insurance document requested.
D.
No mention of the latest date of shipment.
【简答题】Are your children liked by their teachers? All parents want their children to impress(给...的印象) their teachers and succeed in school. You can get your children to impress their teachers by following th...
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