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【单选题】
钢在热加工后形成的纤维组织使钢材的性能产生各向异性，垂直纤维方向具有较高的（）A.
抗拉强度
B.
抗弯强度
C.
抗剪强度
D.
都不是
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】引起流行性角结膜炎的病原体是
A.
腺病毒 8 、 19 、 29
B.
腺病毒 3 、 4 、 7
C.
70 型肠道病毒
D.
单纯疱疹病毒
E.
A24 柯萨奇病毒
【简答题】The first pilgrims settled in the United States in
【单选题】In the United States in 1986, the average rate of violent crime in states with strict gun-control laws was 645 crimes per 100,000 persons—about 50 percent higher than the average rate in the eleven st...
A.
The annual rate of violent crime in states with strict gun-control laws has decreased since the passage of those laws.
B.
In states with strict gun-control laws, few individuals are prosecuted for violating such laws.
C.
In states without strict gun-control laws, many individuals have had no formal training in the use of firearms.
D.
The annual rate of nonviolent crime is lower in states with strict gun-control laws than in states without such laws.
E.
Less than half of the individuals who reside in states without strict gun-control laws own a gun.
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