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【单选题】
关于钻孔桩施工,下列说法正确的是()。
A.
高程低于其设计高程时,可不
B.
灌注首批混凝土时,导管下口至的距离一般定为25~40cm,导管埋入混凝土中的深度不小于1m
C.
灌注混凝土过程中如出现导管进水,应停止灌注,待已浇混凝土达到一定强度后,再进行继续灌注
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【单选题】吸光度与透光率的关系为
A.
A=1/T
B.
A= - lgT
C.
A=lgT
D.
T=lgA
【简答题】阅读理解。 A forest fire burned 55 square kilometers was finally brought under control on Wednesday morning. The fire started on Sunday in Black Bear State Park and quickly spread to nearby areas. On Monda...
【判断题】责任成本是社会化大生产和企业实行分权管理的产物
A.
正确
B.
错误
【单选题】The fire burned up more than $50000 ______ of antiques.
A.
worth
B.
value
C.
cost
【单选题】透光率与吸光度的关系是:
A.
透光率越大,则吸光度值越小,表明物质对光吸收越强
B.
吸光度A的取值范围为:0.00 ~1.00,透光率T的取值范围为:0% ~∞%
C.
透光率倒数的对数称为吸光度
D.
透光率的倒数就是吸光度
【简答题】The fire burned up more than £ 50,000 ............................... of antiques.
【简答题】A.It burned up in a fire. B.Someone soaked it in ink. C.Hot water damaged the entire copy. D.Someone mistakenly threw it into the trash.
【单选题】The fire burned for twelve hours before the fire crews could______it.
A.
refresh
B.
subdue
C.
muffle
D.
gallop
【简答题】A.It burned up in a fire. B.Someone soaked it in ink. C.Hot water damaged the entire copy. D.Someone mistakenly threw it into the trash.
【简答题】朗伯比尔定律的表达式为 ,透光率的表达式为 , 吸光度与透光率的关系为 。
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