题目内容：
The leaves have been swept into huge heaps. 
参考答案：
答案解析：
单选题：The leaves have been swept into huge heaps.
- 题目分类：理工类
- 题目类型：单选题
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What was the condition of the patient before that particular
What was the condition of the patient before that particular night?
Some of the trials were too short to show their long--term e
Some of the trials were too short to show their long--term effects．
I don't quite follow what she is saying.
I don't quite follow what she is saying.
某承包商甲向乙水泥厂发出要约，欲从乙处购买一批某标号的水泥，乙收到要约未给予承诺便直接按照要约将所需水泥装车运送至甲处。
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某房地产开发公司与某设计单位签订的设计合同属于（ ）。
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