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【单选题】
下列说法不属于系统误差产生的原因的是A.
仪器未经校正
B.
试剂浓度不准确
C.
个人操作方法不规范
D.
观察值本身的变异
E.
诊断标准不统一
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皮皮学刷刷变学霸
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【单选题】Her own interests as a mother (brought into play) by her (concern over) the education and welfare of her children, the city (in which) they lived, (and such) municipal facilities as playgrounds, schoo...
A.
brought into play
B.
concern over
C.
in which
D.
and such
【单选题】Although she begged her father over and over again, he still didn’t _____ her marriage.
A.
depend on
B.
put forward
C.
watch out
D.
approve of
【单选题】She is in great _______ (悲痛) over her son’s accident.
A.
disappointment
B.
distress
C.
disaster
D.
dilemma
【单选题】To her disappointment, her best friend did not____at her birthday party.
A.
turn over
B.
turn around
C.
turn up
D.
turn in
【简答题】Her ____ (悲痛) over her child ’ s death was not at all relieved with passing time.
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