面对外资企业对中国企业的并购狂潮，甚至出现外资不但在某些行业形成垄断态势，并且进入我国钢铁、金融、水泥等支柱企业进行并购，重点转向并购大中型企业或整体并购同一行业的骨干企业。如果不及时控制，其危害是
①动摇国有经济的主导地位 ②不利于资源的优化配置
③妨碍市场竞争 ④使公有制经济的主体地位丧失
A．①②③
B．①②④
C．②③④
D．①②③④
答案：D
题目分析：题中材料“外资企业在某些行业形成垄断态势”，这将不利于市场公平竞争，也不利于资源的优化配置，故②③两项符合题意，可以入选；题中材料“外资企业进入我国钢铁、金融、水泥等支柱企业进行并购，重点转向并购大中型企业或整体并购同一行业的骨干企业”，将会冲击我国公有制经济的主体地位，会动摇国有经济的主导地位，故①④两项符合题意，可以入选。因此，答案是D项。
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| Strange things happen to time when you travel, because the earth is divided into twenty - four parts, 1 a part. You can have days 2 more or fewer than twenty - four hours, and 3 with more or fewer than seven days. Your ship goes into 4 time part every day if you make a five - day journey across the Atlantic Ocean. As you go into each part, the time 5 one hour. Traveling west, you 6 your clock back; traveling east, you let it ahead. Each day of your jou rney has 7 twenty-five or twenty-three hours. If you travel by ship across the Pacific, you will 8 the International Date Line. This is the point where a new day _ 9 . When you go across the line, you change your calendar one 10 day, back or ahead. | ||||
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