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【判断题】
在焊接化学冶金中,常用的脱硫剂是锰及熔渣中的碱性氧化物。( )
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】在数据库设计中使用E-R图工具的阶段是。
A.
需求分析阶段
B.
数据库物理设计阶段
C.
数据库实施阶段
D.
概念结构设计阶段
【单选题】稳压二极管正常工作时,工作在什么状态?
A.
正向导通状态
B.
反向截止状态
C.
反向击穿状态
D.
正向截止状态
【多选题】Read the passage- Common Diseases of the Body Systems again and tick off the facts mentioned in the passage about the common diseases of the body system.
A.
Our ability to fight human body diseases
B.
Various disorders of the nine body systems
C.
The skin featuring its susceptibility
D.
An introduction to the new cures for the diseases
E.
Disorders typical of the body systems
F.
Alcoholism contributing to digestive diseases
G.
Two types of immune disorders
【单选题】The review of the literature has documented the important role of fruit and vegetable juices in reducing the risk of various disease, ______in particular.
A.
lung problems
B.
cancer and cardiovascular disease
C.
stomach and intestine disorders
D.
ear, nose and throat troubles
【多选题】Tick off the facts mentioned in the passage about the common diseases of the body system.
A.
Our ability to fight human body diseases
B.
Various disorders of the nine body systems
C.
The skin featuring its susceptibility
D.
An introduction to the new cures for the diseases
E.
Disorders typical of the body systems
F.
Alcoholism contributing to digestive diseases
G.
Two types of immune disorders
【判断题】Various disorders of the nine body systems
A.
正确
B.
错误
【单选题】齐纳二极管正常工作时,工作在 状态。
A.
正向导通
B.
反向截止
C.
反向击穿
【简答题】Task 3 Read the passage again and tick off the facts mentioned in the passage about the common diseases of the body system.A. Our ability to fight human body diseases B. Various disorders of the nine ...
【单选题】齐纳二极管正常工作时,工作在()状态。
A.
反向击穿
B.
放大
C.
反向截止
D.
正向导通
【多选题】Read Reading A again and tick off the facts mentioned in the passage about the common diseases of the body system.
A.
Our ability to fight human body diseases
B.
Various disorders of the nine body systems
C.
The skin featuring its susceptibility
D.
An introduction to the new cures for the diseases
E.
Disorders typical of the body systems
F.
Alcoholism contributing to digestive diseases
G.
Two types of immune disorders
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