大学英语3(专升本)阶段性作业1总分: 100分 考试时间:分钟选词填空1. Mary _ at the same time every morning.(2分)(A) arises(B) raises(C) arrives(D) stands up参考答案：A2. What were the _of the decision she made?(2分)(A) reasons(B) results(C) causes(D) bases参考答案：B3. About a _of the workers in the United States are employed in factories.(2分)(A) third(B) fourth(C) tenth(D) fifteenth参考答案：B4. First editions of certain popular books cannot be obtained _.(2分)(A) at any pl
