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问题 选择题

某校科学兴趣小组的同学将自制的植物标本分成两类，一类是蕨、葫芦藓、海带，另一类是黑松、小麦、玉兰，他们这样分类的依据是有没有[ ]

A．种子

B．根

C．茎

D．叶

答案

A

选择题

下列叙述正确的是（　　）

A．由X变为X2-的反应是氧化反应

B．某反应中的氧化剂也可能有还原性

C．失去电子数多的还原剂，还原性一定强

D．有单质参加或生成的反应一定是氧化还原反应
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单项选择题

A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with （1）, and that it has a mechanism for（2） graphical files. Display text, display graphics, and （3） hyperlinks--there’s 99 percent of the （4） value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred（5）for application development Remember frames and all their nasty side effects

（5）是（）

A.plane

B.plant

C.plate

D.platform
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