题干

已知点P(3,﹣1),那么点P关于x轴对称的点P′的坐标是(   )

A:(﹣3,1)

B:(3,1)

C:(﹣1,3)

D:(﹣3,﹣1)

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答案(点此获取答案解析)

B

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交流促进发展,开放带来进步。阅读下列材料,回答问题。

材料一:张骞出使西域,开辟了西域通道以后,西域的葡萄、石榴、苜蓿、胡桃(核桃)、胡萝卜、汗血良马以及名贵毛织品等陆续传入中原地区,丰富了内地的经济生活。与此同时,中原则向西域地区输送大量的丝织品和金属工具,并把铸铁、凿井挖渠的技术传到西域。

——人教版《中国历史》七年级上册教参

材料二:洋务派为了供应军事工业所需要的原料、燃料和运输,……从70年代开始,便陆续创办工矿业和交通运输业。一部分官员、地主、商人投资开办资本主义近代企业,……从1872年到1894年,开办的企业单位共有100多家,投资总额五六百万元,雇工近三万人。

——白寿弈《中国通史纲要》

材料三:纱厂的创办人……是夺魁的状元。那时,中国社会地位的排列顺序是“士、农、工、商”,状元是“士”中的极品,最受人们的羨慕和尊敬,而工商业却是被士大夫们看不起的“末业”。一个状元竟然“舍本逐末”这在历史上还从来没有过。

——人教版《中国历史》八年级上册

材料四:下图

材料五:2001年,亚太经合组织会议在中国上海召开……2017年5月14—15日,“一带一路”国际合作高峰论坛在中国北京召开……中国的“朋友圈”不断扩大,在诸多国际事务中都发挥着举足轻重的作用 。

——摘编自时政新闻

同类题2

根据短文理解,选择正确答案。

    Whether you're up for a Crocodile Dundee's adventure or you'd just like a taste of the Australian sun, the beaches in and around Sydney can offer you all that and more.

Sydney Beach

    Sydney Beach is located at Sydney's northernmost tip on an extension(延伸) of land ending at Palm Beach. Before checking out the golden sand, take a quick tour of the houses of millionaires from the art and film industries.

Palm Beach

    Only about an hour from downtown Sydney, Palm Beach offers a long stretch(延伸) of clean sand and water. With parking near the center of the beach, that leaves the rest of it as a peaceful location with a sparse population, from which you can go surfing but take care — without the huge crowds of other Sydney's beaches, Palm Beach doesn't afford quite the safety level to be found elsewhere. Volunteer lifesavers are on duty only on weekends and holidays.

Bondi Beach

    For the famous beach, Bondi Beach has to be your choice. Parking is difficult to find even on slow days, so consider taking public transport to this world—known beach in the eastern Sydney suburbs. Easily reachable by taxi, bus, and rail, Bondi Beach offers sun bathing, swimming, snorkeling, and all sorts of water sports fun. If you're in the mood for a bit of exercise, two scenic coastal walks will afford you great views and sights along the shore. Take in views from Mackenzie's Point. It starts at Bondi and heads south to Bronte Beach. But don't try to swim in Mackenzie's Bay — it holds dangers such as hidden rocks.

Bronte Beach

    Your second choice for a scenic coastal walk covers a few miles and takes you from Bronte Beach to Waverly Cemetery, where many famous Australians are buried, including the poet Henry Lawson.