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【单选题】
（ ）仪表由固定的线圈，可转动的铁芯及转轴、游丝、指针、机械调零机构等组成A.
磁电式
B.
电磁式
C.
电动式
D.
以上都不是
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【单选题】The authors argue that more money should be spent on______.
A.
maintaining the well-being of the elderly.
B.
looking after the sick.
C.
extending the life of the dying.
D.
developing aging-slowing interventions.
【单选题】The author would agree that ______.
A.
more money should be spent on the prevention of heart disease
B.
heart surgery has helped most patients improve their conditions
C.
modern technology has made heart surgery more risky than before
D.
the public have known a great deal about the causes of heart disease
【单选题】According to paragraph 1, what do physical properties and chemical properties have in common?
A.
They are both used to create most of the substances.
B.
They include basic substances like sugar and water.
C.
They are classified as characteristic properties of substances.
D.
They change in proportion to the amount of the substance.
【多选题】The processing properties of materials include ( )
A.
casting properties
B.
forging performance
C.
machinability
D.
welding performance
E.
heat treatment properties
【单选题】The physical and chemical properties shared by proteins and amino acids are: ( )
A.
Polymer properties
B.
Colloidal properties
C.
Amphoteric Dissociation
D.
Precipitation properties
E.
Denatured properties
【简答题】要求：在当前窗口中，设置显示隐藏的文件和文件夹。
【单选题】44 The authors argue that more money should be spent on
A.
maintaining the well-being of the elderly.
B.
looking after the sick.
C.
developing aging-slowing interventions.
D.
extending the life of the dying.
【简答题】coUigative properties
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