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问题 填空题

有公共顶点的两条射线分别表示南偏东20°与北偏东30°，则这两条射线组成的角为______度．

答案

两条射线组成的角为：180°-20°-30°=130°．

故答案是：130．

单项选择题

At a recent Haggerty Semiconductors Board of Directors meeting, Merle Haggerty was asked to discuss the topic of the company’s weighted average cost of capital (WACC). At the meeting Haggerty made the following statements about the company’s WACC: Statement 1: A company creates value by producing a higher return on its assets than the cost of financing those assets. As such, the WACC is the cost of financing a firm’s assets and can he viewed as the firm’s opportunity cost of financing its assets. Statement 2: Since a firm’ s WACC reflects the average risk of the projects that make up the firm, it is not appropriate for evaluating all new projects. It should be adjusted upward for projects with greater-than-average risk and downward for projects with less-than-average risk. Are Statement 1 and Statement 2, as made by Haggerty correct Statement 1 Statement 2（）①A. Incorrect Incorrect ②B. Correct Incorrect ③C. Correct Correct

A. ①

B. ②

C. ③
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单项选择题

2009年，十一届全国人大常委会第七次会议至第十二次会议，通过了食品安全法、农村土地承包经营纠纷调解仲裁法、侵权责任法、海岛保护法等多部法律。这体现出（）。

①最高国家权力机关行使了立法职能

②社会主义法律体系正在不断完善

③法律逐步成为调整社会关系的基本手段

④依法治国方略正在逐步落实

A.①②

B.①③

C.②④

D.③④
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