问题 选择题 给下列的算式选择正确的答案。( ) 1. Nine plus one equals __________.( ) 2. Sixteen plus sixteen equals __________.( ) 3. Fifty-six plus forty-four equals __________.A. eightyA. sixtyA. one hundred B. eightB. ninetyB. ninety-nine C. tenC. thirty-twoC. hundreds 答案 1. C 2. C 3. A