已知两不共线的向量a，b的夹角为θ，且|a|=3，|b|=1，x为正实数．（1）

企业注册客户办理网上缴费业务首先要（），然后才能办理具体的缴费查询和网上缴费业务。

A、在柜面申请

B、在柜面申请，并签订协议

C、须到注册行申请

D、在网上银行进行自助缴费信息维护

项目融资中的BOT方式的主要优点之一是( )。

A．在资金缺乏的情况下，可节约投资资金

B．可增加国有企业人员对外交往的经验，提高项目的质量水平

C．在一些大型、复杂工程项目中，可提高流动资金周转速度

D．发展中国家可吸引外国投资和引进国外先进技术

下列有关说法正确的是：（ ）

A．由¹⁴N₂和¹⁵N₂组成的物质是混合物

B．在常温常压下，11.2L氧气所含的原子数目为N_A

C．第三周期的元素从左往右非金属性逐渐增强

D．电解MgCl₂饱和溶液，可制得金属镁

(2013·高考重庆卷，D)Not all bodies of water are so evidently alive as the Atlantic Ocean，an S­shaped body of water covering 33 million square miles.The Atlantic has，in a sense，replaced the Mediterranean as the inland sea of Western civilization.Unlike real inland seas，which seem strangely still，the Atlantic is rich in oceanic liveliness.It is perhaps not surprising that its vitality has been much written about by ancient poets.

“Storm at Sea”，a short poem written around 700，is generally regarded as one of mankind’s earliest artistic representations of the Atlantic.

When the wind is from the west

All the waves that cannot rest

To the east must thunder on

Where the bright tree of the sun

Is rooted in the ocean’s breast.

As the poem suggests，the Atlantic is never dead and dull.It is an ocean that moves，impressively and endlessly.It makes all kinds of noise—it is forever thundering，boiling，crashing，and whistling.

It is easy to imagine the Atlantic trying to draw breath－perhaps not so noticeably out in mid­ocean，but where it meets land，its waters bathing up and down a sandy beach.It mimics(模仿)nearly perfectly the steady breathing of a living creature.It is filled with symbiotic existences，too：unimaginable quantities of creatures，little and large alike，mix within its depths in a kind of oceanic harmony，giving to the waters a feeling of heartbeat，a kind of sub­ocean vitality.And it has a psychology.It has personalities：sometimes peaceful and pleasant，on rare occasions rough and wild; always it is strong and striking.

小题1:Unlike real inland seas，the Atlantic Ocean is________.

A．always energetic

B．lacking in liveliness

C．shaped like a square

D．favored by ancient poets小题2:What is the purpose of using the poem “Storm at Sea” in the passage?

A．To describe the movement of the waves.

B．To show the strength of the storm.

C．To represent the power of the ocean.

D．To prove the vastness of the sea.小题3:What does the underlined word “symbiotic” mean?

A．Living together.

B．Growing fast.

C．Moving harmoniously.

D．Breathing peacefully.小题4:In the last paragraph，the Atlantic is compared to________.

A．a beautiful and poetic place

B．a flesh and blood person

C．a wonderful world

D．a lovely animal

教育理论对教育改革的推动表现在哪些方面？