【正确答案】 C

【答案解析】Draw diagrams. The triangles in the two columns have the same base, AB, and the same height, BC, the distance between the two parallel sides.
The areas of ΔABC and ΔABE are equal. The columns are equal (C).
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【正确答案】 A

【答案解析】The area of each face of the large red cube is (3)² = 9. Therefore, the total surface area is 6 × 9 = 54. The surface area of each small cube is 6(1)² = 6. So, the total surface area of the 27 small cubes is 27 × 6 = 162. Of the 162 small faces, 54 are painted red and 162 -54 = 108 are unpainted. Column A is greater.

【正确答案】 B

【答案解析】Since the sum of two two-digit numbers must be less than 200, A has to be 1, and the sum is 111. Therefore, B + D, the quantity in column B, is 11, whereas A + C, the quantity in Column A, is 10 (which when added to the 1 that was carried from the units digit gives 11). Column B is greater.