推铅球滑步结束时，右脚落在圈的中心附近与投掷方向的构成角度约为（）A、450 B、6

翻译下列句子。

（1）倏鱼出游从容，是鱼之乐也。

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（2）子非我，安知我不知鱼之乐？

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材料一：2010年新年前夕，国家 * * 胡 * * 发表题为《共创世界和平与发展的美好未来》的新年贺词。他指出：我们将坚持“一国两制”、“港人治港”、“澳人治澳”、高度自治的方针，同广大香港同胞、澳门同胞携手努力，保持香港、澳门长期繁荣稳定。我们将坚持“和平统一、一国两制”的方针，牢牢把握两岸关系和平发展的主题，加强两岸更好造福两岸同胞。

材料二：2011年2月22日，两岸经济合作委员不能会得首次例会在台湾举行。会议就经合会工作小组设置、启动《海峡两岸经济合作框架协议》的后续协议磋商等议题深入交换意见，并取得多项共识。这不仅在两岸经济合作关系的发展进程中树立了一座里程碑也在2011年为两岸交流迎来了一个“开门红”。

（1）实现祖国完全统一应坚持的原则和遵循的方针分别是什么：

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（2）为实现祖国统一大业，我们青少年应该做些什么？

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Cities in Europe and around the world may be growing “bike trees” in the near future. Invented by Japan’s JFE Engineering Corp, the invention proved useful in the busiest parts of this nation’s crowded cities.

Local governments of Japan have struggled for ways to encourage people to park their bikes considerably, particularly close to big stations, but that may block some roads and entrances to homes and businesses. “Our cities do not have a lot of space for any kind of parking, including bicycles.” said Mitsuharu Oshima, a spokesman for JFE Engineering. The bike tree comes in two types: one in a tower that is above ground and on the contrary, the other in an underground structure.

A cyclist registers with the operator of the equipment, pays a monthly fee and pushes the wheels of his bicycle into restraints(管理处) at the base of the bike tree. Each bicycle is fitted with an electronic card with the owner’s details. A mechanical arm then pulls the bike into the base of the tower and moves it to a free location inside. To collect the bike later, the cyclist puts his card through a reader and his bike is automatically returned to him in seconds. “The science of the equipment has been difficult —— even though they may look quite simple —— because bikes come in many different shapes and sizes.” said Oshima.

As well as clearing away the road, bicycles cannot be stolen from a bike tree. There are presently versions at seven sites in Japan and two others are under construction, while work is under way on an even larger version —— with room for 9400 bicycles —— in Thailand. And Oshima believes that the idea could catch on in Europe, particularly in countries such as France, Holland and Denmark , where cycling is so popular.

小题1: Cities build this kind of “bike trees” so that they can _______.

A．ask more people to ride bikes

B．provide more jobs for people

C．make more money than before

D．save more room for people小题2:Which is the right order of the following things when you use the bike tree?

① the wheels of the bicycle are put into restraints at the base .

② the card is read and the bike is automatically returned .

③ an electronic card with the owner’s details is given

④ the bike is pulled and moved to a free location inside .

A．③②①④

B．③①④②

C．②①④③

D．②④③①小题3: What made it difficult to design “bike trees”?

A．The location of “bike trees”.

B．The method of finding enough bikes.

C．The differences of the bikes.

D．The importance of traffic safety小题4: From the passage, we can know that _______.

A．countries with many cyclists in Europe will like the idea of “bike trees”

B．there are seven “bike trees” used for holding bikes in Japan

C．local government of Japan encourage people to ride bikes

D．cyclists can use “bike trees” for free in Japan.

我市盛产茶叶，雨花茶享誉省内外。茶中的单宁酸具有抑制血压上升、清热解毒、抗癌等功效，其化学式为C₇₆H₅₂O₄₆，下列说法不正确的是                        （       ）

A．单宁酸由碳、氢、氧三种元素组成

B．一个单宁酸分子由76个碳原子、52个氢原子和46个氧原子构成

C．单宁酸分子中碳、氢、氧元素的质量比为228︰13︰184　

D．一个单宁酸分子中含26个氢分子

天冬除养阴清肺外，又能（）

A.软坚散结

B.凉血止血

C.镇惊安神

D.润燥生津

E.补气生津