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【单选题】
在Excel2000中，下列三种运算符的优先级由高到低的顺序为_______。A.
逻辑运算符、算术运算符、关系元算符
B.
算术运算符、逻辑运算符、关系运算符
C.
算术运算符、关系运算符、逻辑运算符
D.
关系运算符、逻辑运算符、算术运算符
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【单选题】International irade fairs have become extremely important venues For conducting business. yet very few domestically based sales organizations have an understanding of how to cake advantage of the oppo...
A.
unsatisfactorily-conducted
B.
businessman-targeted
C.
delicately-decorated
D.
profit-oriented
【单选题】Question 5. The story at the end of the passage implies that _____. ----- Passage 1 ----- (Para. 1)The air is polluted. The earth is poisoned. Water is unsafe to drink and garbage is burying the civil...
A.
while progress, modern people should pay close attention to pollution
B.
we should stop sometimes to ask where we are going and why
C.
the bad news is also the good news
D.
pollution has become a serious problem
【简答题】栏间跑技术的概念?
【简答题】翻译(英译汉) The chemical industry is concerned with converting raw materials, such as crude oil, firstly into chemical intermediates and then into a tremendous variety of other chemicals. These are then u...
【简答题】松套光纤与紧套光纤的主要区别是（）。当松套管是用来制作中心管式光缆时，松套管中光纤余长应在（）左右。
【单选题】I want to go to the library, but I'm aftaid______in the right direction.
A.
I don't go
B.
I'm not taking
C.
I'm not walking
【单选题】光缆中容纳的光纤数量多，光缆中光纤余长易控制；光缆的机械、环境性能好，适用于直埋、管道和架空的是（）光缆。
A.
层绞式结构
B.
束管式结构
C.
骨架式结构
D.
内孔为螺旋形中心管式
【简答题】extremely important or necessary
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