关于串联电阻的作用，下列说法不妥当的是（）。A．分压 B．限流 C．增大电阻 D．增

阅读下面短文，根据短文内容回答问题。

What to go on holiday, but don’t have enough money for luxury (豪华的) hotels and expensive trips? Backpacking might be right up your street.

Backpacking is a very cheap kind of travel. European and American students and young adults who may not have all that much money often do it. It is called backpacking because, instead of using a suitcase (手提箱), people put all their things in a large backpack. A backpack sits on your back, and you pack all your clothes inside.

The most popular places for backpacking are Southeast Asia and South America. These countries aren’t very expensive, and are also very hot for most of the year. India and Australia are also very popular. In 2002, over 400,000 backpackers hit Australia. Sometimes, backpacking can be dangerous. A British backpacker was recently shot dead at a beach party in Thailand, and every year similar things happen.

Backpacking, in fact, is much more than a holiday—for young people in Europe, it is seen as a way of learning about the world.

Backpackers often travel alone for many months, as this is seen as more of an adventure and challenge. Beyond finding new words, backpacking, people say, is all about “finding yourself”.

小题1:Is backpacking an expensive kind of travel?

小题2:Why is it called backpacking?

小题3:Where are the most popular places for backpacking?

小题4:How many backpackers traveled to Australia in 2002?

小题5:What do people think of backpacking?

求助者一般资料：白女士，女性，38岁，酒店领班。案例介绍：求助者的家庭条件一般，自己是酒店经理，丈夫开了一家公司，家庭条件富裕，有一儿子。求助者希望儿子能考入军校，可是儿子却不喜欢，而且说_定不会考军校。为此她很苦恼，心情很糟糕，来做心理咨询。以下是心理咨询师与求助者谈话的片段：求助者：我想让他考军校，这都是为他好啊！心理咨询师；他有自己的理想，有自己的安排……求助者：我是他妈妈，他必须得听我的话啊？心理咨询师：您在小的时候，您妈妈说的话您都听吗？求助者：不一定，有时候吧。心理咨询师：这就对了，不可能别人让您做什么您就做什么。求助者：那我为儿子所做的努力不全都白费了吗？心理咨询师：问题的关键不在于努力是否白费，而在于您要求儿子必须考军校。实际上，考不考军校也可以成才，您却坚持让他考军校，您的烦恼源于此。求助者：如果不考军校，将来就业压力那么大，如果找不到工作不就一辈子也不能出人头地了吗？我很为他担心。心理咨询师：难道不考军校就不能生活了吗？您不是也没有考军校吗，不也生活得很好吗？求助者：哦……

根据ABC理论，本案例中的A是（）。

A.自己没有考军校

B.儿子不考军校

C.工作压力大

D.夫妻感情不和

患儿女，8个月，因“突然腹痛、呕吐2h”来诊。病前进食鸡蛋。2个月前有相似病史。查体：T36.5℃，P150次/min，R46次/min；急性病容，脱水貌，面色苍白，皮肤花纹，四肢凉。

具有确诊意义的检查是（）

A.腹部B型超声

B.腹部X线片

C.粪轮状病毒检测

D.皮肤点刺试验

E.食物回避激发试验

淋病奈瑟菌的唯一宿主是（）。

A.人

B.猫

C.黑猩猩

D.豚鼠

E.狗

头孢克洛属于（）

A.第1代头孢菌素

B.第2代头孢菌素

C.第3代头孢菌素

D.第4代头孢菌素

E.第5代头孢菌素