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【简答题】
图示结构中三杆的材料和截面均相同,已经计算得到各杆的横截面上的正应力分别为:σ 1 <[σ],σ 2 =1.5[σ],σ 3 <[σ]。鉴于2杆的强度不够,有人认为只要把2杆的截面积增加50%,即可保证结构的强度足够,你认为他的意见如何?为什么?
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【单选题】I. Match the author or the literary works with historical periods or intellectual movements or literary schools: (10 scores, one for each question) A. Transcendentalism 1. The Adventures of Huckleberr...
A.
6
B.
9
C.
8
D.
2
E.
7
F.
3
G.
1
H.
4
I.
10
J.
5
【单选题】The blues was first performed by the black people of New Orleans. A. the color of the clear sky B. a slow, sad style of music C. a fast, happy style of music
A.
the color of the clear sky
B.
a slow, sad style of music
C.
a fast, happy style of music
【单选题】Please observe the following sentence and select the correct answer which reflects the numbers of language according to the sentence sequence. The color of green always gives me the impression of bein...
A.
2,2,2.
B.
3,2,1.
C.
2,2,1.
D.
1,2,2.
【简答题】听下面一段材料，回答第1-3题。 1. What color of overcoat does the woman like ? A. The black one. B. The silver white one. C. The silver grey one. 2. What does the woman think of the overcoat ? A. It is of bad quali...
【简答题】Listen to the news and fill in the blanks. The Pantone Color Institute has named Classic Blue as its color of the year for 2020. The color offers stability and [Q1] , said the vice president of the in...
【简答题】The color of the blue short one is very ________.
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