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Bullet journaling club Do you want to organize your life? Start a bullet journal! Bullet journaling has been described as “ the analog toll for the digital age ” . What ’ s more, it looks beautiful, it ’ s fun and it will help you get organized and plan your life! Bullet journals are for people who: ※ l ike to make to-do lists ※ are into goal-setting and habit-tracking ※ like notebooks, pens, pencils, etc. ※ would really like to keep a journal/diary, but are having trouble sticking with the habit. It ’ s easy once you know how. At first, bullet journaling might look and sound complicated, but once you get started, you ’ ll wonder how you ever lived without it!It ’ s a great way of keeping your plans for the future, your dates in the present and your memories of the past all in the same place. Come and join us! We are a friendly group of students who meet every Saturday morning to spend time working on our journals. Come along and bring your notebook and colored pens! For more information, contact nadia@journalclub.com.
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【单选题】均匀平面波由空气垂直入射到理想导体表面时产生全反射,反射波与入射波叠加形成驻波,其电场强度和磁场强度的波腹位置
A.
相同
B.
相差λ/4
C.
相差λ/2
D.
相差λ
【单选题】精车时,如若用高速钢车刀加工应选用较小的背吃刀量ap和进给量f选择切削速度VC要()。
A.
中等速度
B.
高些
C.
低些
D.
任意
【判断题】均匀平面波入射到理想导体表面与反射波叠加的合成波必是纯驻波。( )
A.
正确
B.
错误
【简答题】There were a lot of hardships when growing up, but there were a lot of fond memories as well. Back in those days, we had very little money, so we couldn’t afford a garden tractor that could make garde...
【单选题】均匀平面波由介质1垂直入射到理想导体表面时,产生全反射。入射波与反射波叠加将形成驻波,其电场强度和磁场的波节位置:
A.
相同
B.
相差四分之一波长
C.
相差二分之一波长
【判断题】( )精车时选择切削用量应选择较小的背吃刀量和进给量,这样才能提高质量。
A.
正确
B.
错误
【单选题】理想从内容上划分为( )
A.
个人理想.社会理想
B.
科学理想.非科学理想
C.
长远理想.近期理想
D.
道德理想.生活理想和职业理想
【判断题】某一平面力系,如果其力多边形不封闭,则该力系一定有合力,合力作用线与简化位置无关
A.
正确
B.
错误
【简答题】整型常量052转换为十进制数等于______
【单选题】均匀平面波由介质垂直入射到理想导体表面时,产生全反射,入射波与反射波叠加将形成驻波,其电场强度和磁场的波节位置()
A.
相同
B.
相差λ/4
C.
相差λ/2
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