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【单选题】
( )常用于制造切削速度较高的刀具和形状复杂、载荷较大的成形刀具。
A.
低合金刃具钢
B.
高速钢
C.
结构钢
D.
模具钢
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参考答案:
举一反三
【单选题】铣削宽度较宽而深度不大的台阶宜采用( )。
A.
端铣刀
B.
三面刃铣刀
C.
立铣刀
D.
圆周铣刀
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【多选题】延胡索的性状鉴别特征为()
A.
块茎呈不规则扁球形、倒圆锥形
B.
表面黄色或黄褐色,有不规则网状皱纹
C.
外皮上端有略凹陷的茎痕,底部有疙瘩状凸起
D.
质坚硬,角质样,有蜡样光泽
E.
气微,味苦
查看完整题目与答案
【单选题】Nobody ____ how to run this machine.
A.
know
B.
have known
C.
knows
D.
is knowing
查看完整题目与答案
【多选题】延胡索的鉴别特征有
A.
块茎呈不规则扁球形,表面有网状皱纹
B.
断面黄色,角质样
C.
气微,味苦
D.
顶端有凹陷的茎痕,底部中央略呈凹脐状
E.
主要镇痛成分为延胡索乙素
查看完整题目与答案
【单选题】The portraits ______ look like them, but I was still unsure of my painting techniques.
A.
did
B.
does
C.
to do
D.
doing
查看完整题目与答案
【多选题】延胡索的性状鉴别特征是
A.
呈不规则扁球形,直径0.3~2cm
B.
表面黄色或黄褐色
C.
顶端略凹陷,有茎痕
D.
碎断面黄色,角质样
E.
气香,味淡
查看完整题目与答案
【简答题】延胡索的鉴别特征,化学成分及常见伪品
查看完整题目与答案
【简答题】It was late in the afternoon, and I was putting the final touch on a piece of writing that I was feeling pretty good about. I wanted to save it, but my cursor had frozen. I tried to shut the computer ...
查看完整题目与答案
【单选题】Nobody knew _______ a living in that country.
A.
to do
B.
to make
C.
how to do
D.
how to make
查看完整题目与答案
【简答题】幼儿歌曲演唱考试五首歌曲分别是?
查看完整题目与答案
相关题目:
【单选题】铣削宽度较宽而深度不大的台阶宜采用( )。
A.
端铣刀
B.
三面刃铣刀
C.
立铣刀
D.
圆周铣刀
查看完整题目与答案
【多选题】延胡索的性状鉴别特征为()
A.
块茎呈不规则扁球形、倒圆锥形
B.
表面黄色或黄褐色,有不规则网状皱纹
C.
外皮上端有略凹陷的茎痕,底部有疙瘩状凸起
D.
质坚硬,角质样,有蜡样光泽
E.
气微,味苦
查看完整题目与答案
【单选题】Nobody ____ how to run this machine.
A.
know
B.
have known
C.
knows
D.
is knowing
查看完整题目与答案
【多选题】延胡索的鉴别特征有
A.
块茎呈不规则扁球形,表面有网状皱纹
B.
断面黄色,角质样
C.
气微,味苦
D.
顶端有凹陷的茎痕,底部中央略呈凹脐状
E.
主要镇痛成分为延胡索乙素
查看完整题目与答案
【单选题】The portraits ______ look like them, but I was still unsure of my painting techniques.
A.
did
B.
does
C.
to do
D.
doing
查看完整题目与答案
【多选题】延胡索的性状鉴别特征是
A.
呈不规则扁球形,直径0.3~2cm
B.
表面黄色或黄褐色
C.
顶端略凹陷,有茎痕
D.
碎断面黄色,角质样
E.
气香,味淡
查看完整题目与答案
【简答题】延胡索的鉴别特征,化学成分及常见伪品
查看完整题目与答案
【简答题】It was late in the afternoon, and I was putting the final touch on a piece of writing that I was feeling pretty good about. I wanted to save it, but my cursor had frozen. I tried to shut the computer ...
查看完整题目与答案
【单选题】Nobody knew _______ a living in that country.
A.
to do
B.
to make
C.
how to do
D.
how to make
查看完整题目与答案
【简答题】幼儿歌曲演唱考试五首歌曲分别是?
查看完整题目与答案
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