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【单选题】
-比尔定律的适用条件是什么?A.
必须是单色光、稀溶液
B.
入射光是复合光
C.
必须是水溶液
D.
标准曲线线性范围很大，可以适用于高浓度
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】In that mountainous area you will find more problems than you can ever expect traveling． Whicn is the＿＿＿problem，lack of food or lack of water?
A.
great
B.
greater
C.
greatest
D.
more great
【单选题】We find ____ transhipment and partial shipment of the Printed Shirting are not possible.
A.
that
B.
what
C.
where
D.
there
【单选题】已知大气压pa=10 0000 Pa,如果某点的真空度为49000 Pa,则该点的绝对压强为()Pa
A.
51×10 3
B.
149×10 3
C.
1.5×10 5
D.
1.05×10 5
【简答题】温度传感器可分为两大类,即 测温传感器和 法测温 传感器。
【单选题】听力原文： Visitors to Britain may find the best place to approach local culture is in a traditional pub. The mysterious rituals of British pubs must be taken into consideration. Most pubs have no waiters....
A.
Church.
B.
Art museum.
C.
Buckingham Palace.
D.
Local pubs.
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