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【单选题】
水的硬度按其所含可溶性盐类的组成分为两类：暂时硬度和永久硬度，下列哪一项是永久硬度A.
碳酸钙
B.
硫酸镁
C.
碳酸镁
D.
重碳酸镁
E.
重碳酸钙
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举一反三
【单选题】A company should pursue unrelated diversification instead of related diversification when:
A.
its core skills are highly specialized and have few applications outside its core business.
B.
the company's top managers are skilled at acquiring and turning around poorly run enterprises.
C.
its core technological skills are applicable to a wide variety of industrial and commercial situations.
D.
it wants to maximize growth.
E.
the bureaucratic costs of implementation do not exceed the value that can be created by realizing economies of scope.
【单选题】关于拉结筋布置做法错误的是( )。
A.
拉结筋的数量为每120mm墙厚放置一根直径为6mm的钢筋
B.
拉结筋的间距沿墙高不得超过 500mm
C.
拉结筋的埋入长度从墙的留槎处算起，每边均不得少于 1000mm
D.
拉结筋的末端应有 90度的弯钩
【单选题】A company should pursue related diversification instead of unrelated diversification when the company's:
A.
core skills are applicable to a wide variety of industrial and commercial situations.
B.
core skills are highly specialized and have few applications outside the core business.
C.
top managers are skilled at acquiring and turning around poorly run enterprises.
D.
main objective is to maximize its growth.
E.
free cash flow is high enough that it has funds available for investment.
【简答题】E Imagine growing a home from living trees instead of building a home from wood. Mitchell Joachim, at the MIT Media Lab's Smart Cities Group, along with ecological engineer Lara Greden and architect J...
【单选题】关于拉结筋布置做法错误的是( )。
A.
拉结筋的数量为每 120mm墙厚放置一根直径为6mm的钢筋
B.
拉结筋的间距沿墙高不得超过 500mm
C.
拉结筋的埋入长度从墙的留槎处算起，每边均不得少于3 00mm
D.
拉结筋的末端应有 90度的弯钩
【简答题】请说出哪些货物属于四类包裹。
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