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【单选题】
稀土金属的探明储存不多 , 且多集中在中国关于其供给弹性 , 如下事实成立A.
如果仍然是竞争性地供给 , 其供给弹性很大
B.
如果国家整合开矿 , 消除恶性竞争 , 其供给弹性会相对于 A 而言变小
C.
如果时间足够的长 , 全球市场上的供给弹性会变大
D.
以上都对
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【简答题】ch6 证明:若关系R是BCNF关系模式,则R是3NF关系模式。
【单选题】— Who is ____ the TV show? She seems to be talented. — Mary Green, who used to be a great actress.
A.
opening
B.
hosting
C.
playing
D.
seeing
【单选题】Who are the kinds of reporters the writer seems to admire most?
A.
Reporters who are highly trained.
B.
Reporters who won't sully themselves.
C.
Reporters who are willing to sacrifice to chase after a story.
D.
Reporters who know how to sift through a lot of information.
【单选题】《旅游法》规定,由于公共交通经营者的原因造成旅游者人身损害.财产损失的,应承担赔偿责任的是____。
A.
地接社，地接社承担责任后可以向公共交通经营者追偿
B.
组团社，组团社承担责任后可以向地接社追偿
C.
地接社和组团社共同承担赔偿责任
D.
公共交通经营者，旅行社应当协助旅游者向公共交通经营者索赔
【单选题】Who are the kinds of reporters the writer seems to admire most?
A.
Reporters who know how to sift through a lot of information.
B.
Reporters who are willing to sacrifice to chase after a story.
C.
Reporters who won't sully themselves.
D.
Reporters who are highly trained.
【单选题】有一溶液,遵守 Lambert-Beer 定律,在 280nm 处,当浓度为 c 时,测得吸光度为 A,当其浓度分别为下列几种情况时,透光率最大的浓度是
A.
0. 5 c
B.
1. 5 c
C.
3 c
D.
4. 5 c
【单选题】有一溶液,遵守 Lambert-Beer 定律,在 280nm 处,当浓度为 c 时,测得吸收度为 A, 当其浓度分别为下列几种情况时,透光率最大的浓度是( )。
A.
0.5c
B.
1.5c
C.
3c
D.
4.5c
【简答题】Mary is the kind of person who always seems to be ______ a hurry. A) on B) in C) with D) for
【简答题】There’s a man at the reception desk who seems very angry and I think he means____ trouble. A) B) to make C) to have made D) having make
【单选题】有一溶液,遵守 Lambert-Beer 定律,在 280nm 处,当浓度为 c 时,测得吸光度为 A,当其浓度分别为下列几种情况时,透光率最大的浓度是
A.
0.5C
B.
1.5C
C.
3C
D.
4.5C
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