题目

Demand for the Chinese tech company's devices (设备) is red hot even though the country's overall market for smartphones is getting smaller. Huawei's China sales rocketed more than 20% in the final quarter of 2018, and experts say that's partly due to the US government's global campaign against the company. “The latest tension between the US and China raised the patriotism (爱国主义) in Chinese consumers，” said Jusy Hong, an analyst at research firm IHS Markit. He pointed out that some Chinese companies encouraged employees to buy Huawei phones late last year. The moves wer如图，S是平面镜上方20cm处一个点光源，它发出的一条光 ，SO与平面镜成30O夹角。⑴S在平面镜中成的像与平面镜相距_________cm，入射角的大小是_________度。⑵请在图中作出S成的像S´及反射光线的位置。