在离子交换处理中，能有效去除水中硅化合物的是（）。A、强酸阳树脂 B、弱酸阳树脂

阅读理解。

                                                          Sailing

     Welcome to our TV show On the Go. Today we are going to talk about an exciting sport-sailing. First

let's talk to Sue, an 18-year-old girl who loves sailing.

Host: When did you start sailing, Sue?

Sue: I started sailing when I was 15 years old.

Host: Is it a difficult sport to learn?

Sue: Yes, it is more difficult than any other sport. For example,you need to learn about the wind

       directions (方向) and how to move the sails in the right way.

Host: How often do you go sailing?

Sue: I go sailing with my father every weekend.

Host: How far do you go sailing?

Sue: It depends on the wind.

Host: OK. Thank you,Sue. Good luck with your sailing.

     Are you interested in sailing after hearing the interview?

     If you want to learn sailing, here is a chance for you.The Water Sports Center will organize sailing

lessons. Each lesson will cost you ￥20 and there are 5 lessons altogether (总共).

1. What does Sue think of learning sailing?

A. Easy.

B. Boring.

C. Difficult.

D. Dangerous.

2. Which of the following is TRUE according to the passage?

A. Sue always sails very far.

B. Sue goes sailing every weekend.

C. Sue goes sailing with her friends.

D. Sue started sailing at the age of 18.

3. If you want to learn sailing at the Water Sports Center,how much will you pay?

A. ￥15.

B. ￥20.

C. ￥50.

D. ￥100.

引起疣的病毒为（）。

A. * * 瘤空泡病毒

B.痘类病毒

C.柯萨奇病毒

D.EB病毒

E.传染性软疣病毒

利用ARPA报警功能设置警戒圈，当报警功能报警时，表示（）。

A、警戒圈内肯定有目标进入

B、警戒圈内可能没有目标进入，可能是虚警

C、警戒圈内不一定有目标进入，可能是ARPA其它故障报警

D、B和C都对

以马克·吐温式的幽默著称的短篇名作是（）。

A.《加利维拉县驰名的跳蛙》

B.《傻子出国旅行记》

C.《竞选州长》

D.《汤姆·索亚历险记》

云间李士材先生近代之国医也所著书甚富其行本曰诊家正眼以审脉也曰本草通玄以辨药也其藏本曰病机沙篆则治法备焉尤为枕中秘云予犹子生洲为先生高弟合而镌之颜曰士材三书而问序于予予非越人乌知医道哉然尝读史记至仓公传而异之夫司马氏家学乃天官书耳太史公之不解刀圭针砭犹太仓公之不识象纬历数也其所据以立传者不过取其自述之言与已验之事耳然太仓之名卒得太史公以传若李先生之人与书传矣予又何能传李先生顾我念之天下之物可以生人杀人者惟兵与药而其用亦相似良将之用兵也必察其地之高下险易料其众之虚实劳逸而后攻守劫伏之法行焉良医之用药也诊其脉之浮沉迟数体其性之温凉甘苦而后补泻收泄之法施焉故将之操纵在心非营壁刁斗之谓也然读孙吴之书谙五花八阵之图虽非百胜之师而亦不至于败医之感通在意非君臣佐使之谓也然习岐黄之经熟五气九藏之理虽无万全之术而亦不至于亡吾闻李先生之治病多任意而不拘法一方出人或相与骇之然投之辄中十不失一及读其三书则参伍古今穷究标本变化而不离其宗又何详且慎也先生盖曰医之以法杀人者什三以意杀人者什七杀于法犹可救也杀于意不可有也昔人谓意之所解口莫能宣其笔之书者成法具在使后之学者高者神明吾意次者亦固守吾法足矣且先生晚年精于二氏故其名书曰正眼曰通玄曰沙篆均有取焉将使读其书者译贝叶而参三要之禅睹金丹而悟九还之旨则又未可以医道尽先生也生洲之先有思斋公为吾宗和鹊必传异书游先生之门而益迸焉故其撰为寿世青编颇多微言妙义予既仰先生有素而亦乐举师说为生洲勉故不辞序之若此太史公曰守数精明为名者宗后世修序弗能易也予于先生亦云康熙丁未夏五吴门尤侗题于看云草堂（《诊家正眼》尤侗合镌三书序）

作者对“李先生之治病多任意而不拘法”是褒还是贬？