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【单选题】
刚体作平面运动时
A.
其上任一截面都在其自身平面内运动
B.
其上任一直线的运动均为
C.
其上任一点的轨迹均为平面曲线
D.
其上点的轨迹也可能是空间曲线
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举一反三
【单选题】Which of the following works best represents the national spirit of the 18th-century England?
A.
Robinson Crusoe.
B.
Gulliver's Travels.
C.
Mr. Jonathan Wild The Great.
D.
A Sentimental Journey.
【单选题】The main interest of travel companies dealing with travel medicine is to
A.
prevent people from falling ill.
B.
make money out of it.
C.
give advice on specific countries.
D.
get the government to pay for it.
【单选题】(D)工作面是两键沿斜面拼合后相互平行的两个窄面,靠工作面上挤压和轴与轮毂的摩擦力传递转矩。
A.
楔键
B.
平键
C.
半圆键
D.
切向键
【单选题】()工作面是两键沿斜面拼合后相互平行的两个窄面,靠工作面上挤压和轴与轮毂的摩擦力传递转矩。
A.
楔键
B.
平键
C.
半圆键
D.
切向键
【简答题】在空白纸上作出交叉两直线的重影点,并用数字标识出来。比如用 1 , 1 ', 2 , 2 '。
【单选题】"Wild Spirit, which art moving everywhere; / Destroy and Preserver; hear, O hear!" The two lines are found in___B_.
A.
Young Goodman Brown by Hawthorne
B.
Ode to the West Wind by Shelly
C.
Leaves of Grass by Walt Whitman
D.
Ulysses by Joyce
【单选题】Wild Spirit (west wind), which art moving everywhere; Destroyer and preserver . .
A.
oxymoron
B.
simile
C.
paradox
D.
pun
【简答题】根据每章内容,请自己总结四到五个简答题,并将答案上传到作业里。作为平时作业打分。
【单选题】How are companies dealing with having to travel more on business?
A.
By keeping travel costs as low as possible.
B.
By sending fewer staff on business trips.
C.
By using less comfortable airlines.
D.
By reducing the number of days employees spend travelling on business.
【简答题】.“Wild Spirit, which art moving everywhere; / Destroyer and Preserver; hear, Ohear!” 1) Identify the poem and the poet. 2) What is the “Wild Spirit”? 3) What does the “Wild Spirit” destroy andpreserve...
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