在同温同压下，下列各组热化学方程式中ΔH1>ΔH2的是[ ] A.2H2(g)+

发布时间：2017-08-07 14:46 │ 来源：www.tikuol.com

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问题：

在同温同压下，下列各组热化学方程式中ΔH1>ΔH2的是[ ]

A.2H₂(g)+O₂(g)==2H₂O(l);ΔH1 2H₂(g)+O₂(g)==2H₂O(g);ΔH2

B.S(g)+O₂(g)==2SO₂(g);ΔH1 S(s)+O₂(g)==2SO₂(g);ΔH2

C.C(s)+1/2O₂(g)==CO(g);ΔH1 C(s)+O₂(g)==CO₂(g);ΔH2

D.H₂(g)+Cl₂(g)==2HCl(g);ΔH1 1/2H₂(g)+1/2Cl₂(g)==HCl(g);ΔH2

考点：热化学方程式

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平等，是法律规范经济活动的一个重要原则，它主要是指[ ]

A．双方要等价交换

B．双方要买卖公平

C．买卖双方的地位平等

D．买卖双方要遵纪守法

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围绕在地球周围的大气，提供了生物维持生命活动所需要的各种气体，也是地球上生物生存不可缺少的保护层。读“以极点为中心的投影图”完成1—2题。

1、图中字母E所表示的气压带是[ ]

A、赤道低气压

B、副热带高气压带

C、副极地低气压带

D、极地高气压带

2、下图中四组箭头，能正确表示D处风带风向的是

A、①

B、②

C、③

D、④

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《合同法》规定国际货物买卖合同和技术进出口合同适用的诉讼时效为（）。

A.一年

B.两年

C.三年

D.四年

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      Day 1  Los Angeles---Las Vegas
   Start the tour following the route of San Bernardino Mountain and enter the Mojave Desert to the
State of Nevada, "the entertainment capital of the world". Upon arrival in the afternoon, you are free
at leisure. You may take an optional night tour to explore the prosperity of night life in Las Vegas and
see the famous shows such as the Fremont Street Viva Vision, Fountain Show at Bellagio and Mardi
Gras at Rio. Overnight.
     Hotel: Stratosphere Hotel or Similar
     Day 2  Las Vegas---Grand Canyon West Rim---Hoover Dam--- Las Vegas
    In the morning, visit one of the Seven Wonders of the World, the Grand Canyon (大峡谷). It is the
World's Seventh Natural Wonder. As you gaze out from the rim, you're viewing 2 billion years of geologic
history. Millions of people each year stand in awe at the canyon and leave with a sense of fulfillment and
realization that they have witnessed nature at her finest. You may take an optional visit to the "Skywalk",
which is the new gigantic construction built on the every edge of the Grand Canyon West Rim. The
Skywalk is suspended 4,000 feet above the Colorado River. This $60 million dollars bridge can withstand
the weight of 71 fully loaded Boeing 74 airplanes (more than 71 million pounds). It is the tallest man-made
structure in the world. From the bridge, you can step out onto the glass floor for a 720 degree view of the
Canyon. You may also take an optional helicopter or boat tour to see the true beauty of the Grand Canyon. Afterwards, proceed to Hoover Dam, which is one of the Seven Wonders of the Industrial World.
(All customers are required to pay $67 admission fee to Grand Canyon West Rim upon arrival)
     Hotel: Stratosphere Hotel or Similar
     Day 3  Las Vegas---Chocolate Factory---Botanical Cactus Gardens---L.A.
    Visit Ethel M Chocolate Factory and Botanical Cactus Gardens before leaving Las Vegas. Stop by
Barstow for a short rest before continuing to Los Angeles. Arrive in Los Angeles in the evening for a
wonderful conclusion of the trip.

Admission to Grand Canyon West Rim	$67.00/person
Skywalk	$32.00/person
Helicopter & Cruise	$179.00/person
Las Vegas Night Tour	$25.00/adult;$20.00/child
Las Vegas Show Ticket +transfer	$73.00/person

Departure Times and Locations
3:00PM Tropicana Hotel (Bus Parking Lot)

1. According to the passage, if you conclude Grand Canyon West Rim in your trip,______.

A. you will feel very disappointed.
B. you will feel very satisfied.
C. you will feel very frightened.
D. you will feel very crazy.

2. If a family of two adults and one child attends all the activities of the first day, they need to pay _____.

A.$148
B.$143
C.$218
D.$289

3. Which of the following is the right order of part of the places of the trip?

A. Los Angeles---the Mojave Desert---San Bernardino---Hoover Dam---L.A.
B. the State of Nevada---Las Vegas---the Grand Canyon---Botanical Cactus Gardens---L.A.
C. Skywalk---the Grand Canyon---Hoover Dam---Chocolate Factory---L.A.---Las Vegas
D. Los Angeles---Las Vegas---the Mojave Desert---the Grand Canyon---L.A.

4. Which description about the Skywalk is TRUE?

A. It is one of the seven natural wonders in the world.
B. It is a bridge which can withstand the weight of 74 fully loaded Boeing 71 airplanes.
C. It is one of the seven wonders of the Industrial World.
D. It is the tallest man-made structure in the world. .

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梅沙系统功能涵盖的业务范围不包括对进出口岸限定区域人员的信息实施口岸查控。

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