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【简答题】
Map 集合中的元素都是出现的,并且都是以 、 的映射关系存在。 方法取出该元素。
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【简答题】分离沸点不同的挥发油的方法（ ）。
【单选题】听力原文：M: Excuse me, do you mind answering a few questions? W: No. M: Um, firstly, do you ever eat fast food? W: Yes, I do. M: What kind of food do you normally eat? W: Oh, er, you know, burgers, sandwi...
A.
French fries.
B.
Bagels.
C.
Sandwiches.
D.
Burgers.
【单选题】听力原文：W: Excuse me, do you mind answering a few questions? M: No. W: Firstly, do you ever cat fast food? M: Yes, I do. W: What kind of fast food do you normally eat? M: Oh, you know, burgers, sandwiche...
A.
Fried chicken.
B.
Sandwiches.
C.
Pizza
D.
Kebabs.
【单选题】_____ be sent to work there when you are away? [ ]
A.
Who do you suggest who should
B.
Do you suggest who should
C.
Who do you suggest
D.
Do you suggest whom should
【单选题】听力原文：M: Excuse me, do you mind answering a few questions? W: No. M: Um firstly, do you ever eat fast food? W: Yes, yes, I do. M: What kind of food do you normally eat? W: Oh, err, you know, burgers, s...
A.
French fries.
B.
Bagels.
C.
Sandwiches.
D.
Burgers.
【简答题】非线性失真是指正弦波信号通过某电路后输出的波形中除包含原基波分量外,还含有其他( )分量,相对于原波形产生了畸变。
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