题干

我国各民族共同缔造了伟大的祖国,下列表述正确的是(   )

①祖国统一大业是各族人民共同完成的           ②祖国灿烂的文化是各族人民共同创造的

③祖国的主权和领土完整是各族人民共同捍卫的   ④中华人民共和国是各族人民共同创立的

A:①②③

B:①②③④

C:①②④

D:②③④

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答案(点此获取答案解析)

B

同类题2

阅读下面短文,掌握其大意,然后从每题所给的A、B、C、D四个选项中选出最佳选项,使文章完整、通顺。

    Susie Sunbeam was not her real name. It was Susan Brown. But everyone called 1 Sunbeam, because she had such a sweet, smiling face. She 2 took brightness with her wherever she went. Her grandfather first gave her this 3, and it seemed to fit the little girl so 4 that soon it took the place of her own.

    Even when Susie was a baby, she laughed and smiled from morning till night. No one ever heard her cry unless she was 5 or hurt. When she had learnt to 6, she loved to go around the house and get things for her mother. 7, she helped her as much as she could.

    She loved 8. She would sit by her mother’s side for an hour at a time, and ask her many questions. At other times, she would take a new book and read quietly. Susie was always pleasant in her play with other children. She never used a(n) 9 word , but tried to do whatever would make her playmates happy.

    One day, a(n) 10 little girl with an old torn dress passed by. Susie heard some children teasing and laughing at her. She at once ran out to the gate, and asked the little girl to come 11.

    “What are you crying for?” Susie asked. “Because they all 12 at me.” she said.

    Then Susie took the little girl into the house. She 13 the little girl with kind words, and she gave her one of her own best dresses and a good pair of shoes. This brought real 14 to the poor child, and she thought that Sunbeam was the 15 name for Susan Brown.

同类题3

阅读理解

    A. High tech with traditional life at Green Bank.

    Over millions of years, penguins(企鹅)have developed a keen sense of where to find food. Once they're old enough, they set off from the shores on which they were hatched for the first time and swim long distances in search of tasty fish like anchovies and sardines. But they don't search directly for the fish themselves.

    For example, when young African penguins head out to sea, they look for areas with low surface temperatures and high chlorophyll(叶绿素) because those conditions signal the presence of phytoplankton(浮游植物). And lots of phytoplankton means lots of plankton(浮游动物), which in turn means lots of their favorite fish. Well, that's what it used to mean.

    Climate change plus overfishing have made the penguin feeding grounds a mirage(海市蜃楼). The habitat is indeed plankton-rich—but now it's fish-poor. Researchers call this an “ecological trap.”

    “It's a situation where you have a signal that previously pointed an animal towards good quality habitat. That habitat's been changed, usually by human pressures. The signal stays, but the quality in the environment deteriorates.”

    Richard Sherley, a zoologist at the University of Exeter and his team used satellite imaging to track the African penguins from eight sites along southern Africa. Historically, the birds benefited from tons of fish off the coasts of Angola, Namibia and western South Africa, but now they're going hungry.

    “I was really hoping we'd see them going east, and finding areas where the fish had moved to but it ends up being quite a sad story for the penguins.” said Richard.

    The researchers calculate that by falling into this ecological trap, African penguin populations on South Africa's Western Cape have declined by around 80 percent.

    Some research groups are exploring the idea of moving chicks to a place where they can't get trapped, like the Eastern Cape. But Sherley thinks that a longer-term solution means making and carrying out rules to create more sustainable(可持续的) fishing industry, something that he says needs public support.