钱乘旦在《走向现代国家之路》一文中指出，“从血统上说，王位的新主人是詹姆士的女儿

艾滋病研究者发现，1%～2%的HIV感染者并不发病，其原因是他们在感染HIV之前体内存在三种名为“阿尔法一防御素”的小分子蛋白质，以下对“阿尔法一防御素”的推测中不正确的是[ ]

A.一定含有C、H、O、N四种元素

B．一定含有20种氨基酸

C．高温能够破坏其结构

D．人工合成后可以用于防治艾滋病

我国计算机网络事业发展很快。据中国互联网络中心(CNNIC)的一项统计显示，截止到1999年6月30日，我国上网用户人数约400万人，其中使用专线上网的用户人数约为144万人，使用拨号上网的用户人数约为324万人。根据以下统计数据，最可能推出以下哪项判断有误

A．考虑到我国有12亿多的人口，与先进国家相比，我国上网的人数还是少得可怜。

B．专线上网与拨号上网的用户之和超过了上网用户的总数，这不能用四舍五入引起的误差来解释。

C．用专线上网的用户中，多数也选用拨号上网，可能是从家里用拨号联网更方便。

D．由于专线上网的设备能力不足，在使用拨号上网的用户中，仅有少数用户有使用专线上网的机会。

True friends double your happiness and half your burdens.Basically how you would like a true friend to be is what you should be like to your true friends.Trust,forgiveness,

responsibility are some elements of a true friendship.True friendships are hard to achieve.

And what’s more,life is short.So treasure these friends if you already have them.If you don’t,

continue to search,because once you have them,life will become so much easier to live,no matter what happens.I have been through very difficult times and I dare say,without my friends,

I would not have made it.

Friendships need lots of energy and patience to maintain them.Not to mention time.When your friend needs you,and when things are not going too well on your side,it is often so easy to  turn a deaf ear to  their requests.It is especially during these times that you must find the strength to help your friend.

And it is during these times that your friendship will be made stronger.

And you must always be happy for their successes,even when things are not going too well for you.It might be hard to do this,but it is something that you need to learn.Think about all the sacrifices your friend has made for you and all the times when he was happy for you despite his own troubles.Think  aboutall the happy times you enjoyed and the sad,difficult times you went through together.That should give you plenty of patience to actually be a true friend.Remember,true friends are the next best thing to family.They will always be your supporters.小题1: What is the best title for this passage?

A．A Precious Friendship

B．A True Friend

C．A Happy Time

D．Friend,a Treasure小题2:According to the passage,to be a true friend,you do NOT need to ___ .

A．trust your friends

B．forgive your friends’ mistakes

C．spend much money on friends

D．be helpful to your friends小题3:True friendships are hard to achieve because ____.

A．friendships can help you through difficult times

B．friendships need lots of energy and patience

C．your friends need you to give more help to them

D．you should be always on your friends’ side小题4:The underlined phrase “turn a deaf ear to” in Paragraph 2 probably means “______”.   

A．pretend not to know

B．take no measures to

C．have no means to

D．turn to a deaf for小题5:From Paragraph 3,we can conclude that          .

A．a friend won’t achieve success without your support

B．most people in trouble are not happy about their friends’ successes

C．you should support your friends on any conditions

D．a true friend appears only when you have troubles

某车在梨温高速上行驶，根据行驶里程和费率标准计算该车通行费为112.5元，实际取整（）元。

A.110

B.112

C.113

D.115

某公路桥梁由多跨简支梁桥组成，总体布置如图所示。每孔跨径25m，计算跨径24m，桥梁总宽9.5m，其中行车道宽度为7.0m，两侧各0.75m人行道和0.50m栏杆，双向行驶二列汽车。每孔上部结构采用预应力混凝土箱梁，桥墩上设4个支座，支座的横桥向中心距为3.4m。桥墩支承在岩基上，由混凝土独立柱墩身和带悬臂的盖梁组成，设计荷载：汽车荷载为公路-Ⅰ级，人群荷载为3.0kN/m²，汽车荷载冲击系数μ=0.215。
提示：按《公路桥涵设计通用规范》(JTG D 60—2004)计算。

假设桥梁每个支座的最大垂直反力标准值为2000kN，当选用板式橡胶支座的板厚为42mm，顺桥向的尺寸规定为400mm时，试问，板式橡胶支座的平面尺寸(mm×mm)，应选下述何项
提示：支座形状系数S＞8；加劲钢板每侧保护层厚度为5mm。

A．400×450
B．400×500
C．400×550
D．400×600