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【简答题】
在RGB彩色空间的原点上,三个基色均没有(),即原点为()色,三基色都达到最高亮度则表现为()色。
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反馈参考答案：
举一反三
【单选题】Wendy spends $30 a week on movies and magazines. The price of a movie is $8, the price of a magazine is $2, and Wendy sees 3 movies a week and buys 3 magazines. The price of a magazine now increases t...
A.
3; 3
B.
less than 3; less than 3
C.
more than 3; fewer than 3
D.
less than 3; more than 3
【多选题】以下试剂能作为基准物质的是
A.
优级纯的Na 2 B 4 O 7 •10H 2 O
B.
99.99%的纯锌
C.
105-110℃烘干2h的Na 2 C 2 O 4
D.
NaOH
【单选题】It_____________you 30 minutes to take a coach there and it_________less than 6$. A.takes, spends B.takes, costs C.costs, spends D.spends, costs
A.
.takes, spends
B.
.takes, costs
C.
costs, spends
D.
spends, costs
【单选题】听力原文：W: What's Wendy doing here today? I thought she was supposed to be out of the office on Tuesdays. M: She decided she'd rather have Wednesdays off instead. Q: What can we learn about Wendy from th...
A.
She has changed her schedule.
B.
She works less than she used to.
C.
She is going to ask for a leave on Wednesday.
D.
She is going to have her vacation on Tuesday.
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