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【多选题】
以下关于符号的说法正确的是（）A.
符号是可重复使用的对象或对象群组
B.
符号的定义以及关于实例的信息都存储在库中
C.
在绘图中多次出现的对象上使用符号有助于减小文件大小
D.
符号实例即为绘图中符号的一次出现
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皮皮学刷刷变学霸
举一反三
【单选题】We would like you to know that we greatly your timely help .
A.
appreciate
B.
thank
C.
accept
D.
admire
【单选题】What we would like you to know is that we greatly ___________your timely help.
A.
compliment
B.
appreciate
C.
thank
D.
attach
【单选题】We would like you to send us details of your various ranges, sizes, colours and prices, and also samples of the different qualities of material used．
A.
include
B.
including
C.
conclude
D.
concluding
【单选题】Why are you advised to give fewer points in your presentation?
A.
To pass on the messages better.
B.
To avoid wasting too much time.
C.
To allow audience to take notes.
D.
To leave more time for questions.
【简答题】Why are you advised not to take any pirate or illegal taxi?
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