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【单选题】

砷盐检查第二法,吸收液中需加入一定量碱,应选用的碱是

A.
硝酸
B.
盐酸
C.
三乙胺
D.
硫化钠
E.
硫酸钠
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题目标签:定量吸收液检查
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】下列哪种检查是锥体束征( )

A.
Lasegue征
B.
奥本海姆(Oppenheim)征
C.
戈登(Gordon)征
D.
查多克(Chaddock)征
E.
霍夫曼(Hoffmann)征

【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

【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

【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