逻辑推理是一种重要的化学思维方法，下列推理合理的是（　　）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Your Teen Is Falling Asleep in Class

    Teens have a busy morning schedule as they need to wake up and get moving very early in order to catch a bus and get to school by the required time. This means teens need to get their rest the night before or they will be too tired to learn anything at school. ____

    When a teen falls asleep in class, two things happen: he/she misses what is being taught and he/she loses the respect of the teacher. He/She may also receive a consequence from the school, depending on the classroom discipline policy. ____

    To prevent your teen from being sleepy in class, try these three tips：

    *Set a time for “lights out” on school nights. This is never any later than 10 p.m. and preferably 9 p.m. ____ Soft music can be on and used to help calm your teen.

    *Help your teen develop a nighttime routine that involves activities that slow them down for the end of the day. ____ Turning off the computer and disconnecting from friends and the excitement of the day an hour before bedtime will also help your teen relax.

    * ____ This will reinforce (增强) what it feels like to be rested and capable of accomplishing what he/she wants.

A．What's worse, they may even fall asleep in class.

B．Set a good example and show him/her your love for learning.

C．Taking a bath and reading are two activities that work well.

D．Point out the positives after your teen has had a good night's rest.

E．All of these things affect your teen's academic success and can be avoided.

F．“Lights out” means the computer, television, lights and cell phone should be off.

G．While your teen keeps his/her goals in line with your expectations, he/she may have his/her own goals.

第一个在实验中发现电流周围存在磁场的科学家是____ 托里拆利实验首先测定了____ 的值．

阅读下列名著选段，完成下列各题。

                                                                                                   （A）

      不多时，只听得街上锣鼓喧天价来。石秀在楼窗外看时，十字路口，周回围住法场，十数对刀棒刽子，前排后拥，把卢俊义绑押到楼前跪下。铁臂蔡福拿著法刀；一枝花蔡庆扶著枷梢说道：“卢员外，你自精细著。不是我兄弟两个救你不得，事做拙了。前面五圣堂里，我己安排上你的坐位了，你可以一块去那里领受。”说罢，人丛里一声叫道：“午时三刻到了。”一边开枷。蔡庆早拏住了头，蔡福早掣出法刀在手。当案孔目高声读罢犯由牌。众人齐和一声。楼上石秀只就一声和里，掣出腰刀在手，应声大叫：“梁山泊好汉全伙在此！”蔡福蔡庆撇了卢员外，扯了绳索先走。石秀楼上跳将下来，手举钢刀，杀人似砍瓜切菜，走不迭的，杀翻十数个；一只手拖住卢俊义，投南便走。

                                                                                                   （B）

      当黄胡子押送兵走到保尔跟前的时候，保尔猛然向他扑去，抓住他的步枪，狠命向下压。

      刺刀啪嗒一声碰在石头路面上。

      佩特留拉匪兵没有想到会有人袭击，愣了一下。他立刻尽全力往回夺枪。保尔把整个身子的重量都压在枪上，死也不松手。突然一声枪响，子弹打在石头上，蹦起来，落到路旁的壕沟里去了。

      朱赫来听到枪声，往旁边一闪，回过头来，看见押送兵正狂怒地从保尔手里往回夺枪。那家伙转着枪身，扭绞着少年的双手。但是保尔还是紧紧抓住不放。押送兵简直气疯了，猛一使劲，把保尔摔倒在地。就是这样，枪还是没有夺走。保尔摔倒的时候，就势把那个押送兵也拖倒了。在这样的关头，简直没有什么力量能叫保尔撒开手里的武器。

      朱赫来两个箭步，蹿到他们跟前，他抡起拳头，朝押送兵的头上打去。紧接着，那个家伙的脸上又挨了两下铅一样沉重的打击。他松手放开躺在地上的保尔，像一只装满粮食的口袋，滚进了壕沟。