下列各项，应根据总账科目和明细科目余额分析计算填列的是（）。 A．货币资金 B．固

下列加点字注音无误的一项是

A．竹篙hāo斑斓lán淬cuì火凌侮wǔ

B．踟蹰chí变徵zhǐ青荇xìng罹难lí

C．忤wǔ视 被八创chuāng河畔bàn慢溯shuò

D．漂泊bó箕踞qí漪yī沦瞋zhēn目

已知关于x的一元二次方程x²+kx+1=0有两个相等的实数根，则k的值为（　　）

A．2

B．-2

C．2或-2

D．3

Three—quarters of a million tourists flock to the white beaches every year，but this booming industry has come at a price．Poisonous smoke rising from open fires，rubbish made up of plastic bottles，packets…it’S a far cry from the white sands，clear waters and palm trees that we associate with the Maldives(马尔代夫)，the paradise island holiday destination set in the Indian Ocean．

of its 200 inhabited islands，which are spread across an area of"35，000 square miles，99 are good resorts(旅游胜地)．So many tourists come every year，more than double the local population．Of these，over l 00，000 travel from the U K．The capital，Mal6，is four times more densely populated than London．Given these facts，it’S hardly surprising that the Maldives has a waste disposal problem．

Y ears a90，when the tourists left，the government had to deal with a stream of rubbish．Their solution was to turn one of the islands into a dumping ground．Four miles west of Mal6 is the country’s dumping ground，Thilafushi．What you are seeing here is a view of the Maldives on which no honeymooners will ever clap eyes．Each visitor produces 3．5 kg of waste per day．The country dumps more than 330 tons of rubbish on the island every day．

Now，since many waste boats，fed up with waiting seven hours or more，directly offload their goods into the sea，the government of the Maldives has banned the dumping of waste on the island．S0，the waste boats ship the rubbish to India instead．

小题1:What is the main cause of the waste disposal problem?

A．The big local population．

B．Too many waste boats．

C．The large number of tourists．

D．Open fires on the islands．小题2:The underlined part can probably be replaced by“——”．

A．it’s quite similar to

B．it’S a long distance from

C．it’s a loud shout from

D．it’S totally different from小题3:What can we learn from the text?

A．It iS much more crowded in Mal6 than in London．

B．Another island will be used as a dumping ground．

C．No honeymooners are willing to visit the Maldives．

D．Waste on islands will be offloaded directly into the sea．小题4:What’S the author’S purpose in writing the text?

A．To attract more tourists to the Maldives．

B．To state the waste disposal problem in the Maldives．

C．To call on us to protect the environment．

D．To explain the causes of pollution in the Maldives．

表面式和混合式加热器各有什么优、缺点？

液-液相界面不能选择（）测量。

A、浮球法

B、浮筒法

C、差压法

D、辐射法