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【单选题】
尿素是人工合成的第一个有机物，是目前使用量较大的一种化学 ( )A.
钾肥
B.
磷肥
C.
氮肥
D.
其他化肥
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反馈参考答案：
举一反三
【单选题】A company that makes Computer Assisted Design （CAD） software has， within its application， some utilityclasses that are used to perform 3D rendering tasks. The company’s chief scientist has just improv...
A.
Inheritance
B.
Tight coupling
C.
Low cohesion
D.
High cohesion
E.
Loose coupling
【单选题】----Do you like______a doctor for the children? ----Yes. To be a children’s doctor is rewarding.
A.
be
B.
being
C.
are
D.
become
【单选题】What allows the programmer to destroy an object x？（）
A.
x.delete（）
B.
x.finalize（）
C.
Runtime.getRuntime（）.gc（）
D.
Explicitly setting the object’s reference to null.
E.
Ensuring there are no references to the object.
F.
Only the garbage collection system can destroy an object.
【单选题】With children, if you say 'no', you have to mean ______.
A.
that
B.
this
C.
it
D.
one
【简答题】What would you look for in the location if you have children? __________________________.
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