[听力原文]11-15
Miss Yang from China worked as a (11)（）in a Canadian company. She became friendly with one of the (12) （） secretaries, a woman named Cathy Lane. They two usually ate lunch together and Yang often asked Cathy for advice on problems she faced about Canadian society. Cathy gave her a lot of advice and helped her move from one apartment to another. Yang visited Cathy several times at home but she did not invite Cathy to her apartment, because she (13) （）. If they did not see each other over the weekend, they usually (14)（）.
However, recently something seemed to be going wrong. Cathy seemed to be (15) （）. She started going out by herself al lunchtime instead of eating with Yang, and she seemed unwilling to answer questions. Yang was puzzled. She couldn’t imagine what the problem was,
| Shopping habits in the United States
have changed greatly in the last quarter of the 20th century. {{U}} (26)
{{/U}} in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was {{U}} (27) {{/U}} on both sides with many{{U}} (28) {{/U}}businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. {{U}} (29) {{/U}}, some shops offered {{U}} (30) {{/U}}. These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops, {{U}} (31) {{/U}}in the 1950s, a change began to {{U}} (32) {{/U}}. Too many automobiles had crowded into Main Street{{U}} (33) {{/U}} too few parking places were {{U}} (34) {{/U}}shoppers. Because the streets were crowded, merchants began to look with inter A. because of B. and C. with D. provided [判断题]只有支路停役断路器分开时,母差相关支路的SV接收压板才可以退出。
A.正确 B.错误 [单项选择]一经发现并改正了程序中隐藏的缺陷，然后再重新执行以前发现这个缺陷的测试，查看此缺陷是否重现。这种测试方法被称作________。
A. 增量测试 B. 回归测试 C. 大突击测试 D. 动态测试 [多项选择]城市环境空气质量监测点位的设置要（）。
A. 具有较好的代表性，能客观反映一定空间范围内的环境空气污染水平和变化规律 B. 位于各城市建成区内，并覆盖全部建成区，但应考虑城市规划，使确定的监测点能兼顾未来城市发展的需要 C. 应尽可能均匀分布，同时在布局上应反映城市主要功能区和主要大气污染源的污染现状及变化趋势 D. 用全部空气质量评价点的污染物浓度计算出的算术平均值应代表所在城市建成区污染物浓度的区域总体平均值 [单选题]衡量不同组织细胞兴奋性大小的关键指标是
A.刺激强度 B.刺激强度时间变化率 C.阈值 D.刺激频率 E.刺激作用时间 [多选题] 根据欧姆定律公式I=U/R可以导出R=U/I，由公式得出的错误结论有
A.导体电阻的大小跟导体两端电压成正比 B.导体电阻的大小跟导体中电流成反比 C.导体电阻的大小是由导体两端的电压和通过导体中的电流共同决定 D.导体的电阻是导体本身的一种性质，它的大小与导体两端的电压和通过导体中的电流无关 [判断题]测量误差主要是人的失误造成，和量具、环境无关。（ ）
A.正确 B.错误 我来回答: 提交
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