题目

有X，Y，Z三种金属，只有Z在自然界中主要以单质形式存在．如果把Y加入X的硝酸盐溶液中，Y表面有X析出．据此判断这三种金属的活动性由强到弱的顺序为（）A． X＞Z＞Y         B．  X＞Y＞Z       C． Y＞X＞Z        D． Z＞Y＞X 答案：C阅读下列应用文及相关信息，并按照要求匹配信息。选项中有一项是多余选项。请把答案填写在答题卷相对应的题号上。 首先阅读下列六款手机的介绍： A．Nokia­6010        Price: $24.99　Color display: Yes     Wireless Internet ready: Yes        Digital camera: No　2­way text messaging: Yes     Talk time: Up to 330 minutes        Standby time: Up to 240 hours　Weight: 5.08 ounces     Dimensions: 4.68″×1.97″×0.90″        Games: Backgammon, Bowling, Air glide, and Sky diver plus downloadable Java games B．Motorola­C650 (Camera phone)        Price: $99.99　Color display: Yes     Wireless Internet ready: Yes        Digital camera: Yes　2­way text messaging: Yes     Talk time: Up to 210 minutes        Standby time: Up to 215 hours　Weight: 3.10 ounces     Games: Downloadable games C．Samsung­V1660 on Sprint PCS        Price: Free　Color display: Yes     Wireless Internet ready: Yes        2­way text messaging: Yes     Talk time: Up to 204 minutes     Standby time: Up to 168 hours 　Weight: 3.54 ounces     Memory locations: 200 entry phonebook D．Motorola­SLVR­L7        Price: $206.4　Color display: Yes     Wireless Internet ready: Yes        Digital camera: Yes　2­way text messaging: Yes     Talk time: Up to 450 minutes        Standby time: Up to 345 hours　Weight: 3.39 ounces     Dimensions: 4.45″×1.93″×0.45″        Games: Enjoy preloaded J2ME games or downloadable games E．Nokia­8010        Price: $124.99　Color display: Yes     Wireless Internet ready: Yes        Digital camera: No　2­way text messaging: Yes     Talk time: Up to 330 minutes        Standby time: Up to 240 hours　Weight: 4.08 ounces     Dimensions: 3.68″×1.27″×0.70″        Games: Downloadable games F．Kyocera­SE47 slider on version wireless        Price: $149.99　Color display: Yes     Wireless Internet ready: Yes        Digital camera: No　2­way text messaging: Yes     Talk time: Up to 210 minutes        Standby time: Up to 100 hours　Weight: 3.39 ounces        Memory locations: 200 entry phonebook 以下是五个人的信息介绍。请将这五个人与他们需要的最佳款式的手机匹配起来。 41.Susan is at a middle school.Her parents want to buy her a cheaper cell phone without games installed. 42.Mike intends to buy a phone with longer talk time and standby time and it can not be expensive. 43.Jane is at college.She would like to buy a phone which can slide the face up to make a call, and slide it down when you're done and it has to be light. 44.George would like to have a cheaper phone with digital camera. 45.Tom only buys Nokia.He lost one and he wants to buy another which is smaller.