All the parts of this washing machine are ______, so that it is very convenient to replace
A. normalized
B. mechanized
C. modernized
D. standardized
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A．In 4 or 5 years.B．In one year.C．In 3 or 4 years.D．In 36 weeks.
A. In 4 or 5 years.
B. In one year.
C. In 3 or 4 years.
D. In 36 weeks.
A．besidesB．althoughC．as
A. besides
B. although
C. as
在用例建模过程中，若几个用例执行了同样的功能步骤，此时可以把这些公共步骤提取成独立的用例。这种用例称为(41)。在UML用例图上，将用例之间的这种关系标记为(42)。
A. 扩展用例
B. 抽象用例
C. 公共用例
D. 参与用例
A．neitherB．eitherC．too
A. neither
B. either
C. too
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