To clean the water bottle which has been used for a long time, white vinegar can be used to remove ______ from the inner surface of the bottle.

第1题

What are the symbolic meanings of a clean, well-lighted place in Earnest Hemingways short story “A clean, well-lighted place”？

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第2题

Which of the following would be considered a free good（)？

A.Fresh water

B.Forests in the northwestern United States

C.The advice of economists

D.All the above

E.None of the above

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第3题

“Waiter, can I have the （）, please？” “Here it is, sir. It’s 49 dollars in total.”

A.menu

B.bill

C.water

D.dish

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第4题

Diamonds cost more than water, so diamonds must be worth more to us than water.（)

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第5题

A 100 mL sample of water is titrated with 12. 24.mL. of the EDTA solution(0. 020 40 mol·L^-1). Calculate the degree of hardness of the water.

A 100 mL sample of water is titrated with 12. 24.mL. of the EDTA solution（0. 020 40 mol·L^-1). Calculate the degree of hardness of the water.

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第6题

请根据以下内容回答 60～64 题 A．An organ of higher plants， usually subterranean and havin

请根据以下内容回答 60～64 题

A．An organ of higher plants， usually subterranean and having several functions，including the absorption and conduction of water and dissolved minerals， food storage，and anchorage of the plant in the soil. It is distinguished from the stem by its structure，by the manner in which it is formed， and by the lack of such appendages as buds and leaves.

B．It grow horizontally， as a food-storing organ， beneath the surface of the ground， and enables a plant to reproduce itself.It has nodes， buds，and tiny leaves and does not die when cut； replanted， it yields new plant.

C．both A and B

D．neither A nor B

第 60 题一种起运输作用的器官是（）

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第7题

If you are staying in the UK for more than 6 months, it may be useful to open a UK ban

k account. There are a lot of advantages of having a UK current (checking) account:

Paying bills

Many landlords prefer to collect rent directly from a bank account.

You may be able to obtain cheaper services if you pay bills directly from a bank account，e. g. telephone, gas/water/electricity.

If you are given a chequebook, you can also write cheques as a safe way of paying for things.

Cash

You can easily obtain money from cash machines，or pay directly from your account using a debit card(借记卡).

Saving money

It is generally cheaper to use a UK account than it is to pay by credit card(信用卡)or withdraw (提取) cash from a foreign bank.

Employment

If you work in the UK，some employers require you to have a bank account so that you can get your pay.

Advantages of UK Current Account

Paying bills： 1) to pay rent directly from ①

2) to obtain ② services

3) to pay for things with cheques safely

Cash：1)to obtain money from ③ easily

21 to pay directly from your account

Saving money：cheaper to use a ④ account

Employment：to get your ⑤ through a bank account

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第8题

Today we live in a world where GPS systems, digita...

Today we live in a world where GPS systems, digital maps, and other navigation apps are available on our smart phones. 1 of us just walk straight into the woods without a phone. But phones 2 on batteries, and batteries can die faster than we realize. 3 you get lost without a phone or a compass, and you 4 can’t find north, a few tricks to help you navigate 5 to civilization, one of which is to follow the land... When you find yourself well 6 a trail, but not in a completely 7 area, you have to answer two questions: Which 8 is downhill, in this particular area？ And where is the nearest water source？ Humans overwhelmingly live in valleys, and on supplies of fresh water. 9 , if you head downhill, and follow any H2O you find, you should 10 see signs of people. If you’ve explored the area before, keep an eye out for familiar sights—you may be 11 how quickly identifying a distinctive rock or tree can restore your bearings. Another 12 : Climb high and look for signs of human habitation. 13 , even in dense forest, you should be able to 14 gaps in the tree line due to roads, train tracks, and other paths people carve 15 the woods. Head toward these 16 to find a way out. At night, scan the horizon for 17 light sources, such as fires and streetlights, then walk toward the glow of light pollution. 18 , assuming you’re lost in an area humans tend to frequent, look for the 19 we leave on the landscape. Trail blazes, tire tracks, and other features can 20 you to civilization. 1.

A、Some

B、Most

C、Few

D、All

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第9题

Boxing for Fitness （健身)When it comes to boxing, most people think of two strong athlet

Boxing for Fitness (健身)

When it comes to boxing, most people think of two strong athletes in a ring trying to destroy each other with their fists. _____(1) It is a sport that people can get a great exercise from.

Boxing for fitness is fast becoming a popular way to exercise. It is easy to understand when you consider all the benefits of the sport. You will gain increased speed, skill and strength. _____(2) You will learn the basic attack skills and how to combine them effectively.

So you may wonder how I got started in boxing. I was already at the gym quite often, doing weight training. _____(3)But I was still soft around the midsection (上腹部).After a conversation with my boss at lunch one day he suggested I come to a boxing class with him. He is a very fit man in his 40s._____(4)And he told me all I needed to bring was a bottle of water and a towel.

If I have learnt anything from the experience, it is not to be afraid to try something new. No matter what your skill or fitness level is, boxing is good for you. The reason is that this exercise can be modified to suit you. _____(5)

(1)._____.