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【多选题】
关于气体样品用六通阀定量进样的特点,正确的有()
A.
进样速度快
B.
气密性好
C.
操作复杂
D.
重复性好
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题目标签:
六通阀
样品
定量
参考答案:
参考解析:
刷刷题刷刷变学霸
举一反三
【简答题】定量装入制度
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【判断题】六通阀进样与注射器进样相比,前者进样结果的重现性较好,相对偏差小于1%。
A.
正确
B.
错误
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【多选题】公司持有一定量的现金的动机是( )。
A.
交易性需要
B.
投机性需要
C.
预防性需要
D.
购买固定资产
E.
投资需要
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【判断题】从事危险废物贮存的单位,必须得到有资质单位出具的该危险废物样品物理和化学性质的分析报告,认定可以贮存后,方可接收。
A.
正确
B.
错误
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【单选题】Part ADirections: Read the following four texts.Answer the questions below each text by choosing A, B, C or D.(40 points)The long year of food shortage in this country have suddenly given way to appar...
A.
The abundant food supply is not expected to last
B.
Britain is importing less food
C.
Despite the abundance, food prices keep rising
D.
Britain will cut back on its production of food
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【简答题】什么是荧光定量PCR?
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【简答题】定量装入
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【单选题】The long year of food shortage in this country have suddenly given way to apparent abundance. Stores and shops are choked with food. Rationing (定量供应 ) is virtually suspended, and overseas suppliers ha...
A.
the fall in world food prices would benefit British food producers
B.
an expansion of food production was at hand
C.
British food producers would receive more government financial support
D.
it looks depressing despite government guarantees
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【单选题】定量检测AFP不能采用
A.
ELISA
B.
RIA
C.
对流免疫电泳
D.
荧光偏振免疫
E.
电化学发光
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【简答题】荧光定量PCR(fluorescent quantitative PCR,FQ-PCR)
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