题目
ELE - ELL B Reading Practice
单项选择题
Read and answer the question: Which steps show the correct way to determine the amount of spaceavailable for flowers and extra seating?
选项
A.Step 1: 20 feet x 20 feet. Step 2: 2,500 feet squared - 20 feet.
B.Step 1: 20 feet x 2. Step 2: 2,500 feet squared - 40 feet.
C.Step 1: 20 feet x 20 feet. Step 2: 2,500 feet squared - 400 feet.
D.Step 1: 20 feet x 20 feet. Step 2: 2,500 feet squared x 400 feet
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标准答案
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思路分析
Question restatement: Determine which option correctly shows the steps to find the available space for flowers and extra seating.
Option 1 analysis: 'Step 1: 20 feet x 20 feet. Step 2: 2,500 feet squared - 20 feet.' Here Step 1 computes an area as 20 by 20 feet, which is 400 square feet. In Step 2, subtracting 20 feet (a linear dimension) from an area (square feet) is dimensionally inconsistent; the subtraction should involve area minus area. This makes the calculation dubious even before nume......Login to view full explanation登录即可查看完整答案
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