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【多选题】
在作图过程中,取点计算斜率时需要注意以下哪几点?A.
可在直线上任意取两点
B.
不能取特殊点
C.
不能取数据点
D.
在数据点所构成直线的两端延长线上取点
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皮皮学刷刷变学霸
举一反三
【单选题】The angle at which 90 ° refraction of a longitudinal sound wave is reached is called
A.
The angle of incidence
B.
First critical angle
C.
The angle of maximum reflection
D.
The second critical angle
【单选题】A curve is a line_________no part is straight and which has no angle.
A.
that
B.
whose
C.
of which
D.
which
【判断题】越王勾践面对亡国的人生大耻,痛定思痛,卧薪尝胆,终成复国大业;音乐巨匠贝多芬面对双耳失聪的人生厄运,告诫自己,要扼住命运的咽喉,于是演奏出了辉煌的《命运》绝响;海涅面对手足瘫痪、视力微弱的人生绝境,信念不倒,笔耕不辍,吟唱出了誉满人间的不朽诗篇......由此可见,在绝境中成功者往往会突破思想上的樊篱,超越世俗常规,书写连自己都不曾想过的神话。 这一段运用了举例论证方法,
A.
正确
B.
错误
【简答题】Which one of each of the following pairs is expected to have the larger bond angle?
【单选题】the is the angle at which the airfoil begins to loses its lift.
A.
angle of attack
B.
blade angle
C.
pitch angle
D.
critical angle of attack
【单选题】The maximum angle at which the intact stability curves are valid for ship’s is the angle for（）.
A.
the limit of positive stability
B.
the limit of small-angle stability
C.
maximum offset
D.
downflooding
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