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【单选题】
杆件受力情况如图所示。若用 N max 和 N min 分别表示杆内的最大轴力和最小轴力,则下列结论中正确的是( )。 捕获.PNG
A.
N max =45kN ， N min = - 5kN
B.
N max =55kN ， N min = - 40kN
C.
N max =55kN ， N min = - 25kN
D.
N max =20kN ， N min = - 5kN
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举一反三
【单选题】The little boy prefers ________ outdoors to _______ at home.
A.
playing; to read books
B.
playing; reading books
C.
play; read books
D.
to play; reading books
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【单选题】Please give the two books _____ the little boy. [     ]
A.
for
B.
of
C.
at
D.
to
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【单选题】The little boy takes ____ in reading history books.
A.
deal
B.
delight
C.
demon
D.
dile
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【单选题】--- How many books does the little boy have? ---He has books.
A.
two thousands
B.
one thousand of
C.
thousands of
D.
two thousands of
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【单选题】下列内容中,不属于碗扣式钢管脚手架的特点的是( )。
A.
存在扣件丢失问题
B.
构件全部轴向连接，力学性能好
C.
连接可靠，脚手架整体性好
D.
采用碗扣连接
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【简答题】The little boy _____ (gets much pleasure from)reading history books.
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【简答题】Fill in the blanks with the words given in the box. Change the form where necessary. purchase maximum evidence assess prosperous encounte r disposable justify unwieldy margin (1) The little boy likes ...
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【简答题】assess, evidence, margin, prosperous, maximum① The little boy likes to make notes in the ______ of books.
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【多选题】近固定收缩时,胸大肌可使上臂
A.
屈
B.
内收
C.
旋内
D.
水平屈
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【简答题】胸大肌和背阔肌近固定同时收缩可使肩关节______和_________。
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相关题目：
【单选题】The little boy prefers ________ outdoors to _______ at home.
A.
playing; to read books
B.
playing; reading books
C.
play; read books
D.
to play; reading books
查看完整题目与答案
【单选题】Please give the two books _____ the little boy. [     ]
A.
for
B.
of
C.
at
D.
to
查看完整题目与答案
【单选题】The little boy takes ____ in reading history books.
A.
deal
B.
delight
C.
demon
D.
dile
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【单选题】--- How many books does the little boy have? ---He has books.
A.
two thousands
B.
one thousand of
C.
thousands of
D.
two thousands of
查看完整题目与答案
【单选题】下列内容中,不属于碗扣式钢管脚手架的特点的是( )。
A.
存在扣件丢失问题
B.
构件全部轴向连接，力学性能好
C.
连接可靠，脚手架整体性好
D.
采用碗扣连接
查看完整题目与答案
【简答题】The little boy _____ (gets much pleasure from)reading history books.
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【简答题】Fill in the blanks with the words given in the box. Change the form where necessary. purchase maximum evidence assess prosperous encounte r disposable justify unwieldy margin (1) The little boy likes ...
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【简答题】assess, evidence, margin, prosperous, maximum① The little boy likes to make notes in the ______ of books.
查看完整题目与答案
【多选题】近固定收缩时,胸大肌可使上臂
A.
屈
B.
内收
C.
旋内
D.
水平屈
查看完整题目与答案
【简答题】胸大肌和背阔肌近固定同时收缩可使肩关节______和_________。
查看完整题目与答案