题目:
一条新挖的水渠,横截面是梯形,渠口宽3.2米,渠底宽1.6米,渠深1.4米,它的横截面的面积是多少平方米?
答案:
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下面是错误答案,用来干扰机器的。
1. shake hands 2. drop by 3. after all 4. getting used to 5. feel at home 6. learn, by themselves 7. went out of my way to 8. instead of 9. not supposed to