甲、乙、丙三人各说了一句话,每句话不是对的就是错的。甲说:“乙丙都说假话。”乙说

题型:解答题

问题:

甲、乙、丙三人各说了一句话,每句话不是对的就是错的。甲说:“乙丙都说假话。”乙说:“我从不说假话。”丙说:“乙说的是假话。”你能判断谁的话肯定是错的吗?

考点:逻辑推理
题型:解答题

常温下将HA和HB两种一元酸的溶液分别加水稀释,稀释时溶液pH的变化如图所示.则下列叙述中正确的是(  )

A.HA是一种弱酸

B.稀释前,c(HA)=10c(HB)

C.在M点的两种溶液中:c(B-)=c(A-),且c(B-)+c(H+)>c(A-)+c(OH-

D.在NaB和HB的混合溶液中一定存在:c(B-)>c(Na+)>c(H+)>c(OH-

题型:解答题

C

The unknown world's mystery

The sea is the biggest unknown part of our world. It covers seventy-one percent of the earth. There is still much to be discovered about this vast blanket of water. If the waters of the ocean could be removed, the sea floor with its wide valleys, irregular, mountains and rivers in the sea. would be an unbelievable sight.

Tourism under the deep blue sea

Tourists an now explore the world beneath the waves without ever getting wet. From tourist submarines to underwater dining, undersea tourism is making a big splash.

Tourist submarines(潜艇)

The popularity of submarine tours has grown rapidly in the last decade. Now, tourist submarines operate in more than 20 locations worldwide, including the waters around Okinawa and Taiwan' s Green Island. The submarines carry nearly 2 million tourists each year. Large windows offer passengers spectacular views as the submarines explore colorful coral reefs and sunken ships. Most one-hour tours cost about US $ 80.

Underwater dining

For a more upscale experience, tourists can enjoy fine dining under the sea.  Last summer the Hilton Maldives Resort opened the world's first underwater restaurant, Ithaa.  Diners walk down a staircase into the restaurant, which rests 35 feet beneath the waves of the Indian Ocean. Transparent walls surround the dining area, and you can treat guests to a panoramic(全景)ocean view.

But this excellent view doesn't come cheap. The tasting menu costs US $ 200 per person. Be sure to make reservations early, too. The restaurant seats only 14 people.

66. What does the author want to tell us in Paragraph 1?

A. The sea is the biggest unknown part of our world.

B. The sea covers seventy-one percent of the earth.

C. Some information about the sea floor.

D. The reasons for researching undersea tourism.

67. What does the author really mean by saying "undersea tourism is making a big splash" in Paragraph 2?

A. Undersea tourism is a new fashion in travelling.

B. Your clothes will be made wet by the water splash.

C. Undersea tourism is dangerous.

D. There is still a long way for undersea tourism to go.

68. Which of the following statements about tourist submarines is RIGHT?

A. Tourist submarines only have a history of about 10 years.

B. There are tourist submarines in every part of the world now.

C. Tourist submarines' have carried about 2 million tourists so far.

D. People can enjoy tourist submarines in the waters around Okinawa.

69. The walls of the restaurant Ithaa are most probably made of            .

A. stone       B. brick   C. glass    D. steel

70. From the passage,, we can infer that the author            .          .

A. doesn't think underwater tourism is a good idea

B. shows great interest in underwater tourism

C. is worried about underwater tourism

D. is probably a scientist who studies the sea

题型:解答题

下列物质依次为悬浊液、乳浊液、溶液的一组是 [ ]

A、牛奶、汽水、石灰浆

B、矿泉水、自来水、汽油和水的混合物

C、江水、乳白鱼肝油、碘酒

D、盐酸、泥浆、“健力宝”饮料

题型:解答题

除二类居住建筑外,高层建筑的疏散走道和安全出口处()设灯光疏散指示标志。

A.不宜

B.不应

C.应

D.严禁

题型:解答题

关节的基本结构包括()

A.关节面

B.关节囊

C.关节腔

D.筋膜

E.腱鞘

更多题库