问题 选择题

向27.2Cu和Cu2O的混合物中加入某浓度的稀硝酸0.5L,固体物质完全反应,生成NO和

Cu(NO3)2。在所得溶液中加入1.0mol/L 的NaOH溶液1.0L,此时溶液呈中性,金属离子已完全沉淀,沉淀质量为39.2g。下列有关说法不正确的是[ ]

A.Cu与Cu2O的物质的量之比为2:1            

B.硝酸的物质的量浓度为2.6mol/L

C.产生的NO在标准状况下的体积为4.48L       

D.Cu、Cu2O与硝酸反应后剩余HNO3为0.2mol

答案

答案:B

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Top islands in the Mediterranean

Desiring a sun-and –sea summer holiday destination where you can also party the night away? Travel website TripAdvisor has come up with a list of the top islands in the Mediterranean sea. “All of these islands offer pristine (原始的) beaches and their own unique features,” said TripAdvisor spokeswoman Michele Perry. “Our travelers have identified the hot islands in the Med this summer, especially if you want sun, sea and dancing all night”.

Cyprus, Republic of Cyprus

Visit Aphrodite’s birthplace in the eastern Mediterranean. Beaches are the draw for many visitors to the island, but so is the nocturnal (夜间的) activity with Ayia Napa being the town to party in. According to one TripAdvisor traveler, “we would have to say the Troodos Mountains were our highlight. You will know what we mean if you take the journey. Breathtaking!”

Crete , Greece

As the former centre of the Minoan civilization, it’s no wonder that Crete features lots of historical attractions. Those in search of adventure on the largest Greek island can hike down Samaria Gorge for wonderful scenery. As one TripAdvisor traveler said, “Crete is an amazing place to explore ancient culture.”

Ibiza, Balearic Islands, Spain

Visit the party capital of Ibiza and feel honoured by joining thousands of revelers(狂欢者) at Privilege, the largest club in the world. Besides the vast nightlife, check out one of the UNESCO World Heritage Sites, such as God’s Finger, a large rock at the entrance of Benirras Bay.

Sicily, Italy

The largest island in the Mediterranean, Sicily has the three Cs—culture, cuisine and calm. Laden with orange and lemon orchards, the countryside boasts natural beauty, great for relaxing. One

TripAdvisor traveler recommended, “If you are in Sicily, go on the sunset tour off Mount Etna. You can see the steaming ground and smell the sulfur(硫磺).”

65. Where should you go if you like ancient culture?

A. Cyprus.        B. Crete.          C. Ibiza, Balearic Islands.        D. Sicily.

66. Which of the following statements is NOT true?

A. In Cyprus and Ibiza, Balearic Islands, you can enjoy various activities at night.

B. The largest island in the Mediterranean is part of Greece.

C. Perhaps you can read the passage on the Internet.

D. God’s finger is one of the UNESCO World Heritage Sites.

67. What is a common feature of the places mentioned in the passage?

A. They have a lot of historical attractions.

B. They all boast natural beauty and natural resources.

C. They offer sun, sea and dancing all night.

D. They are listed as UNESCO World Heritage Sites.