问题
选择题
—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”
— .
A．Forty-fifth
B．Forty-five
C．Twenty-three
D．One hundred and twenty-one
答案
答案：B
略
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—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”
— .
A．Forty-fifth
B．Forty-five
C．Twenty-three
D．One hundred and twenty-one
答案：B
略