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【简答题】
What does BioMedical Materials study?
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皮皮学刷刷变学霸
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【简答题】阅读理解。 A strange woman comes to my door one day in early March. In this area we often have people selling things door-to-door, but she doesn't look like a professional saleswoman. She just smiles and g...
【简答题】中外合资经营企业的特点有哪些?
【简答题】金融企业的特点有哪些?
【单选题】If we say a “dog” is an animal with four legs and a tail, often kept as a pet or trained for work, this is its
A.
denotative meaning
B.
connotative meaning
C.
implied meaning
D.
extended meaning
【单选题】An animal raised by another species will often show affection for a member of _________ species when it grows up.
A.
that
B.
those
C.
this
D.
these
【单选题】According to this passage,
A.
man is the cause of some animal extinction.
B.
animals often bring about their own extinction.
C.
Congress can absolutely end extinction of animals.
D.
a law is more important than human responsibility.
【多选题】【请选出两项正确答案】某单筋矩形截面梁b×h = 250mm×500mm，梁内配置3根直径为18mm的HPB300钢筋（主力作用下容许应力160MPa），混凝土用C30（弯曲受压容许应力10.0MPa），纵向受力筋保护层厚度为30mm。在主力作用下截面弯矩M=40kN.m。应用容许应力法，按普通梁取n=10，在进行截面校核时，核算其截面钢筋应力值所处区间为（ ）MPa。
A.
115-125
B.
120-130
C.
125-135
D.
130-140
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