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【多选题】
下面对布线系统中数字表达式a～d×(e×f)×g～h中字母代表意思，描述正确的是（）。A.
a:线路符号或线路功能的符号
B.
f:导线截面积，不同截面积应分别表示
C.
g:线路敷设方式的符号
D.
h:导线根数
E.
e:导线根数
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【简答题】What will you miss in the U.S.when everyone appears to be in a hurry?
【简答题】传动系最大传动比 主要用于什么工况?
【单选题】听力原文：M: Uh-uh. Look! I'm going to be a little late for class. W: You do need to hurry up! M: I hope Prof. Clark doesn't start on time today. W: Are you kidding? You can set your watch by the start of ...
A.
He has been unpredictable lately.
B.
He is usually punctual.
C.
He advised his students to wear watches to class.
D.
He rarely notices when students are late.
【简答题】传动系最大传动比 主要用于什么工况?
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【单选题】This type of loan is (frequent) used for this purpose.
A.
frequently
B.
frequent
C.
freque
D.
frequented
【简答题】This type of loan is (frequent) used for this purpose.
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