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【单选题】
高效液相色谱仪最常用的检测器是A.
电子捕获检测器
B.
氢焰离子化检测器
C.
紫外检测器
D.
示差折光检测器
E.
蒸发光散射检测器
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反馈参考答案：
举一反三
【单选题】_________the answer, the boy, who asked the question, still stood with his hand ______.
A.
Giving, raised
B.
Giving; rising
C.
Given; risen
D.
Given; raised
【单选题】His parents showed no signs of _______ to his demands.
A.
giving in
B.
giving off
C.
giving up
D.
giving out
【单选题】_________ there are certainly times when giving up trying is the right thing to do, in most cases all needed is commitment and communication.
A.
Unless
B.
Before
C.
Although
D.
Since
【简答题】简述Watson和Crick等人提出的B-DNA双螺旋结构模型的要点和结构参数。
【单选题】下列符合组织内各部门必须服从它的上一级部门领导的命令和指挥的组织设计原则的是
A.
稳定性和适应性相结合原则
B.
管理层次与管理跨度原则
C.
分工与协作原则
D.
集权与分权相结合原则
E.
统一指挥原则
【单选题】The radio is________ a strange signal. What’s wrong with it?( )
A.
giving up
B.
giving in
C.
giving out
D.
giving away
【单选题】下列符合“组织内各部门必须服从它的上一级部门领导的命令和指挥”符合组织设计原则中的
A.
稳定性和适应性相结合原则
B.
管理层次与管理跨度原则
C.
分工与协作原则
D.
集权与分权相结合原则
E.
统一指挥原则
【单选题】That rude boy ________ have rushed out of the classroom when Ms Green was giving a lecture, which finally led to his being punished by the head teacher. [ ]
A.
could
B.
must
C.
dare
D.
should
【单选题】The girl long hair was giving a piece of paper to the boy a black shirt.
A.
in; with
B.
with; in
C.
with; with
D.
in; in
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