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【单选题】
工商网络经济监管是指工商行政管理部门依托自身职能职责，根据相关法律法规，对网络经济中的各类网络经营主体、网络经营行为和网络经营客体的（）进行监管，营造公平竞争、诚信经营的网络环境，促进网络经济健康发展。A.
存在性
B.
合法性
C.
实用性
D.
有效性
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【简答题】It's my treat.
【简答题】It's my treat tonight.
【单选题】角焊缝的最小焊脚尺寸 ,最大焊脚尺寸 ,式中的 和 分别为( )。
A.
为腹板厚度,， 为翼缘厚度
B.
为翼缘厚度， 为腹板厚度
C.
为较薄的被连接板件的厚度， 为较厚的被连接板件的厚度
D.
为较厚的被连接板件的厚度， 为较薄小的被连接板件的厚度
【单选题】You know, I ___ a job for three months, and this is my first interview．
A.
was looking for
B.
looked for
C.
have been looking for
D.
have looked for
【单选题】听力原文：M: How did you find your new job? Was it advertised in the paper? W: I looked and looked for months without finding anything. Then a friend told me about this job. So I applied and got it. Q: How...
A.
She saw an ad. in the newspaper.
B.
She learned about it from a friend.
C.
She heard about it during a television interview.
D.
She saw it on a list of job openings.
【单选题】—How much should I pay for the dinner? —________.
A.
You are welcome
B.
That's my pleasure
C.
It's my treat
D.
It's my charge
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