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【单选题】
下列关于合理标注机械零件图尺寸的原则说法错误的是(    )。
A.
主要尺寸应直接标注
B.
相关尺寸的基准和注法应一致
C.
避免尺寸链封闭
D.
加工基准与非加工基准面间可用两个尺寸相联系
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举一反三
【单选题】When a person has a BMI greater than 25 and a waist circumference of more than 40 in (102 cm) in men or 35 in (88 c) in women, there is no increased risk of ( )
A.
cardiovascular disease
B.
hypertension
C.
type 2 diabetes
D.
lower weight loss
查看完整题目与答案
【单选题】When a person has a BMI greater than 25 and a waist circumference of more than 40 in (102 cm) in men or 35 in (88 c) in women, there is an increased risk of ( )
A.
cardiovascular disease
B.
hypertension
C.
type 2 diabetes
D.
lower weight loss
查看完整题目与答案
【简答题】（1）用化学符号表示：2个氯分子______；3个铝原子______；4个镁离子______；2个硫酸根离子______；正2 价的钙元素______；氧化铁______；水______；双氧水______； （2）请在 ①氢气、②石墨、③干冰、④酒精几种物质中选择适当物质序号填空：写字用的铅笔中含______；    司机驾机动车前饮用的饮料不能含有______；属于未来新型能源的是______...
查看完整题目与答案
【简答题】The features of some email systems can ( ) you when a person has received your email and may also ( ) you when the person has read it.
查看完整题目与答案
【简答题】The features of some e-mail systems can _______ you when a person has received your e-mail and may also tell you when the person has read it.
查看完整题目与答案
【单选题】X6132型万能铣床制作电气控制板时，应用厚（ ）的钢板按要求裁剪出不同规格的控制板。
A.
.1mm
B.
1.5mm
C.
.2.5mm
D.
4mm
查看完整题目与答案
【判断题】X6132型万能铣床的电气控制板制作前,应检测电动机三相电阻是否平衡,绝缘是否良好,若绝缘电凰低于0.5兆欧,则必须进行烘干处理,
A.
正确
B.
错误
查看完整题目与答案
【判断题】X6132型万能铣床的电气控制板制作前，应检测电动机三相电阻是否平衡，绝缘是否良好，若绝缘电阻低于0.5M~ 则必须进行烘干处理。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】1089. X6132 型万能铣床制作电气控制板,应用厚( )的钢板按要求裁剪出不同规格的控制板。
A.
1mm
B.
1.5mm
C.
2.5mm
D.
4mm
查看完整题目与答案
【单选题】According to the passage, when a person has first lost a job, more often than not, he feels ______.
A.
excited
B.
isolated
C.
shocked
D.
depressed
查看完整题目与答案
相关题目：
【单选题】When a person has a BMI greater than 25 and a waist circumference of more than 40 in (102 cm) in men or 35 in (88 c) in women, there is no increased risk of ( )
A.
cardiovascular disease
B.
hypertension
C.
type 2 diabetes
D.
lower weight loss
查看完整题目与答案
【单选题】When a person has a BMI greater than 25 and a waist circumference of more than 40 in (102 cm) in men or 35 in (88 c) in women, there is an increased risk of ( )
A.
cardiovascular disease
B.
hypertension
C.
type 2 diabetes
D.
lower weight loss
查看完整题目与答案
【简答题】（1）用化学符号表示：2个氯分子______；3个铝原子______；4个镁离子______；2个硫酸根离子______；正2 价的钙元素______；氧化铁______；水______；双氧水______； （2）请在 ①氢气、②石墨、③干冰、④酒精几种物质中选择适当物质序号填空：写字用的铅笔中含______；    司机驾机动车前饮用的饮料不能含有______；属于未来新型能源的是______...
查看完整题目与答案
【简答题】The features of some email systems can ( ) you when a person has received your email and may also ( ) you when the person has read it.
查看完整题目与答案
【简答题】The features of some e-mail systems can _______ you when a person has received your e-mail and may also tell you when the person has read it.
查看完整题目与答案
【单选题】X6132型万能铣床制作电气控制板时，应用厚（ ）的钢板按要求裁剪出不同规格的控制板。
A.
.1mm
B.
1.5mm
C.
.2.5mm
D.
4mm
查看完整题目与答案
【判断题】X6132型万能铣床的电气控制板制作前,应检测电动机三相电阻是否平衡,绝缘是否良好,若绝缘电凰低于0.5兆欧,则必须进行烘干处理,
A.
正确
B.
错误
查看完整题目与答案
【判断题】X6132型万能铣床的电气控制板制作前，应检测电动机三相电阻是否平衡，绝缘是否良好，若绝缘电阻低于0.5M~ 则必须进行烘干处理。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】1089. X6132 型万能铣床制作电气控制板,应用厚( )的钢板按要求裁剪出不同规格的控制板。
A.
1mm
B.
1.5mm
C.
2.5mm
D.
4mm
查看完整题目与答案
【单选题】According to the passage, when a person has first lost a job, more often than not, he feels ______.
A.
excited
B.
isolated
C.
shocked
D.
depressed
查看完整题目与答案