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【简答题】
在创建 TreeSet 对象时,可以传入自定义的比较器,自定义比较器需要实现 接口。
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【单选题】Ms. Natalia Servoski Odvik Industries Olag, Ukraine Dear Ms. Servoski, I am writing to express my gratitude for your generous hospitality last week. I very much enjoyed having the opportunity to (90) ...
A.
observe
B.
trial
C.
integrate
D.
outsource
【简答题】人们因三鹿奶粉事件认识了三聚氰胺．三聚氰胺也被人称为“蛋白精”．长期或反复摄入大量的三聚氰胺可能对肾与膀胱产生影响，导致结石．三聚氰胺的化学式为C 3 H 6 N 6 ．求： （1）三聚氰胺碳、氢、氧元素的质量比=______； （2）三聚氰胺中氮元素的含量是______．（精确至0.1%）
【单选题】Which of the following characteristics make an industry more conducive to collusive behavior?
A.
Firms in the industry have very different marginal costs of production.
B.
Firms in the industry produce goods with significantly different product attributes.
C.
Firms in the industry are operating at a maximum productive capacity that cannot be easily altered in the short run.
D.
Firms in the industry serve customers that can easily switch between firms as they search for the best price.
【简答题】三聚氰胺
【单选题】下列对三聚氰胺的说法正确的是（ ）。
A.
三聚氰胺是由C、N、H三种原子构成
B.
三聚氰胺的相对分子质量为126克
C.
三聚氰胺含氮量约为66.7%
D.
三聚氰胺中C、N元素的质量比为1：2
【简答题】三聚氰胺
【简答题】三聚氰胺事件发生在()
【单选题】9 A problem that can arise in using trade protectionism to develop international competitiveness for a domestic industry is that ________.
A.
it is difficult to identify industries that have a high probability of reaching competitiveness
B.
assistance should be given only if entry barriers to new firms are very low
C.
the protecting countries lose too much revenue from import duties
D.
a short product life cycle makes the industry quickly noncompetitive
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