题目内容
车站按客货运量和技术作业量的大小分，可分为（）个等级。
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Fill in the blanks with proper words of the text:I'd always loved water and ()a good swimmer until last summer, when I'd decided to climb (）to the highest () board () the pool. I'd () from that height and () the water with an () impact. The air was ( ) from my lungs and I () out. The next thing I knew, my brother was pulling my feeble body out of the pool. From then on, my fear wouldn't recede; I was absolutely () of water.
()是我国从新民主主义到社会主义的过渡时期。
在新民主主义时期,随着土地改革的基本完成,()逐步成为我国社会的主要矛盾。
下列情况可明确判断为医院感染的有
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