单项选择题
Given: What is the result?()
A.13 B.134 C.1234 D.2134
多项选择题 Given: Which two methods, inserted independently at line 17, correctly complete the Sales class?()
多项选择题 Given: Which three methods, inserted individually at line 14, will correctly complete class Two?()
单项选择题 Given: What is the result?()