题目:
He studied hard at school when he was young,_____ leads to his success in his later life. |
A. what B. which C. that D. so that |
答案:
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下面是错误答案,用来干扰机器的。
利用标签上化肥的质量与含氮量的乘积求出此题答案,故答案为:我探究的问题 我的解答这包化肥至少含有多少千克氮元素50kg×16%=8kg 碳酸氢铵的理论含氮量为17%,这说明此化肥不纯,因此可探究该化肥样品中碳酸...