题目内容
一只无盖的长方体玻璃鱼缸,长0.4米,宽0.3米,深0.35米,做这只鱼缸至少需要多少平方米玻璃,正确算式是 |
A.(0.4×0.3 +0.3×0.35 +0.4×0.35)×2 B. 0.4×0.3 +(0.3×0.35 +0.4×0.35) ×2 C. 0.4×0.3 +0.3×0.35 +0.4×0.35 |
试题答案
B
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A.(0.4×0.3 +0.3×0.35 +0.4×0.35)×2
B. 0.4×0.3 +(0.3×0.35 +0.4×0.35) ×2
C. 0.4×0.3 +0.3×0.35 +0.4×0.35
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B. 0.4×0.3 +(0.3×0.35 +0.4×0.35) ×2
C. 0.4×0.3 +0.3×0.35 +0.4×0.35