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【单选题】
下列何项具有化生和贮藏精气的生理功能A.
六腑
B.
五脏
C.
五体
D.
脑
E.
女子胞
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】按表面形状的不同钢筋可分为 和 。
【单选题】下列哪种情况下, Lambert-Beer 定律不能成立 ( )
A.
入射光波长为 260nm
B.
溶液透明、均匀、无散射
C.
溶液中待测物质的浓度为 1.0 mol × L -1
D.
溶剂为甲醇
【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】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】Lambert-Beer 定律适用于下列哪种情况( )
A.
白光、均匀、非散射、低浓度溶液
B.
单色光、非均匀、散射、低浓度溶液
C.
单色光、均匀、非散射、低浓度溶液
D.
单色光、均匀、非散射、高浓度溶液
【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
【单选题】下列哪种情况下，Lambert-Beer定律不能成立
A.
入射光波长为260nm
B.
溶液透明、均匀、无散射
C.
溶液中待测物质的浓度为1.0 molL-1
D.
溶液中吸光物质稳定
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