将抛物线y=x2-2向左平移3个单位，所得抛物线的函数表达式为（ ）。

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑.

“Down-to-earth” means someone or something that is honest, practical and easy to deal with. It is   36  to find someone who is down-to-earth. A person who is down-to-earth is easy to talk to and   37  other people as equals. A down-to-earth person is just the   38  of someone who acts important and proud.

Down-to-earth persons   39  be important members of society, of course.   40  they do not let their importance “go to their heads”. They do not   41  themselves to be better persons than others of less importance. Someone who is filled with his own importance and pride, often without cause, is   42  to have “his nose in the air”. There is   43  way a person with his nose in the air can be down-to-earth.

Americans   44  another expression that means almost the same as “down-to-earth”. The expression is “both-feet-on-the-ground”. Someone with both-feet-on-the-ground is a person with a good   45  of reality. He  46  what is called “common sense”. He may have   47 , but he does not allow them to   48  his knowledge of what is real.

The opposite kind of   49  is one who has his “head-in-the-clouds”. A man with his-head-in-the-clouds is a dreamer whose   50  is not in the real world.

  51 , such a dreamer can be brought back to earth.   52  words from a teacher can usually bring a day-dreaming student down-to-earth..

Usually, the person who is down-to-earth is very   53  to have both feet on-the –ground.   54  we have both our feet on-the –ground, when we are down-to-earth, we act honestly and openly   55  others. Our lives are like the ground below us, solid and strong.

36. A.pleasant       B.sad           C.common          D.surprising

37. A.meets          B.welcomes     C.receives        D.accepts

38. A.case           B.kind         C.opposite        D.example

39. A.must           B.may          C.should          D.will

40. A.But            B.So           C.For             D.And

41. A.wish           B.expect       C.desire          D.consider

42. A.said           B.told         C.asked           D.made

43. A.some           B.a            C.no              D.every

44. A.discover       B.find         C.make            D.use

45．A.understanding  B.wish         C.reason          D.expectation

46. A.demands        B.lacks        C.has             D.likes

47. A.fortunes       B.dreams       C.achievements    D.disadvantages

48. A.block          B.protect      C.own             D.gain

49. A.idea           B.people       C.attitude        D.person

50. A.mind           B.life         C.body            D.head

51. A.Always         B.Therefore    C.However         D.Sometimes

52. A.Sharp          B.All          C.No              D.Bad

53. A.possible       B.probable     C.likely          D.able

54. A.Though         B.Since        C.When            D.Unless

55.A.toward          B.for          C.over            D.onto

根据《反不正当竞争法》的规定，下列各项中，属于欺骗性市场交易行为的是 ( )。

A．擅自使用他人的企业名称或者姓名，引人误认为是他人的商品

B．经营者采用财物或者其他手段进行贿赂以销售或者购买商品

C．投标者之间串通投标，抬高标价或者压低标价

D．利用有奖销售的手段推销质次价高的商品

(14分）近年来，我闽许多地区气候异常现象频发，如：云南持续几个月的干旱、北方频发的沙尘暴等，使环境问题再次成为公众的焦点是对环境影响较大的儿种气体，对它们的合理控制和治理是优化我们生存环境的有效途径。

(1）下列做法中，有利于降低大气中的浓度的有__________ (选填字母)。

a.   直接用煤做燃料

b.  开私家车

c.   棺树造林以增加绿化面积

d.  研究、幵发太阳能使之走进寻常百姓家

(2 )用CO和H₂做原料可以合成甲醇，作为液体燃料。已知：

请写出用合成气（CO和H₂)合成1mol液态甲醇的热化学反应方程式：__________

(3) 利用电化学原理将CO、SO₂R化为重要化工原料，装置如图所示：

①若A为CO,B为H₂, C为CH₃OH,则通入CO的一极为_____极

②若A为SO₂,B为O₂,C为H₂SO₄,则负极的电极反应式为：__________

(4) ①已知：密闭容器中，条件下， ,其平衡常数K=13.3。

当此反应达到平衡时，若，则=_______________(保留两位有效数字)。

②若改变上述体系的某个条件，达到新的平衡后，测得混合气体屮，，则改变的条件是____________________

为实施恐怖活动与境外恐怖活动组织或者人员联络的构成准备实施恐怖活动罪。

悬挑脚手架搭设过程中，（）交底一次，交底双方履行签字手续。

A.搭设前向作业人员

B.每搭一段均需

C.检查验收后