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【单选题】
以下哪一个术语与数据的存储结构有
A.
B.
队列
C.
散列表
D.
线性表
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【多选题】二氧化碳气体保护焊的主要工艺参数有( )等。
A.
焊丝直径
B.
焊接电流
C.
电弧电压
D.
焊接速度
E.
焊丝伸出长度
F.
气体流量
【多选题】下列属于二氧化碳气体保护焊短路过渡焊时的主要焊接工艺参数有()
A.
焊接回路电感
B.
气体流量及纯度
C.
焊接电流
D.
焊丝伸出长以及电源极性
【单选题】What's wrong with Jessie?
A.
She has a stomachache.
B.
She has a headache.
C.
She has a toothache.
【单选题】It was there, the police believe, _________ she was able to activate the recorder she kept in he
A.
22. It was there, the police believe, _________ she was able to activate the recorder she kept in her bag. A.until
B.
which
C.
that
D.
When
【单选题】—Lucy has never been to Qingdao, has she? —________.  She hopes to go there one day. [     ]
A.
Yes, she has
B.
No, she hasn't
C.
Yes, she hasn't
D.
No, she has
【简答题】A.She has to catch the train. B.She has to catch the bus. C.She has to go to work. D.She is tired.
【单选题】This is a photo of my aunt when she had______, and now she has a few ______.
A.
short hairs; grey hair
B.
short hair; grey hairs
C.
short hair; grey hair
D.
short hairs; grey hairs
【多选题】二氧化碳气体保护焊的主要工艺参数有( )等
A.
焊丝直径
B.
焊接电流
C.
焊接速度
D.
气体流量
【简答题】A.She has to meet a friend. B.She has to fly to Argentina. C.She has to attend a meeting. D.She has to lunch with the man next week.
【单选题】plt.savefig保存图片可以保存成什么格式
A.
jpg
B.
png
C.
jpeg
D.
bmp
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