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【判断题】
采用招标方法 企业选择合作伙伴,由于这种方法 竞争性强,企业能在更广泛的范围内选择适当的合作伙伴,以获得供应条件有利的、便宜而适用的物品。A.
正确
B.
错误
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举一反三
【简答题】The only real and lasting solution, say the experts, is to convince people that driving is a skilled task requiring constant care and concentration.
【单选题】The best solution to the problem can only be found by a process of trial and ______.
A.
error
B.
mistake
C.
success
D.
experiment
【简答题】如图(a)所示，一根长直同轴电缆，内、外导体之间充满磁介质，磁介质的相对磁导率为μ r (μ r ＜1)，导体的磁化可以略去不计。电缆沿轴向有稳恒电流I通过，内外导体上电流的方向相反。求：
【简答题】A solution is 0.010mol·L -1 in both Cu 2+ and Cd 2+ . What percentage of Cd 2+ remains in the solution when 99.9% of the Cu 2+ has been precipitated as CuS by adding sulfide?
【简答题】The solution to acid rain can only come about ______.
【单选题】The best solution to the problem can only be found by a process of trail and ______.
A.
mistake
B.
error
C.
success
D.
experiment
【单选题】AIDS is a global problem that demands a unified， worldwide solution， which is not only the responsibility of nations in which AIDS is most __________.
A.
vigorous
B.
relevant
C.
prevalent
D.
rigorous
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