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【单选题】
钠原子和钾原子的火焰光谱波长为A.
589nm和766nm
B.
489nm和666nm
C.
489nm和766nm
D.
589nm和866nm
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【简答题】The baby is just learning to ______. (crawler)
【简答题】阅读下面短文，根据其内容，完成表格中所缺的信息。（共5小题，每小题1分；计5分） What makes a successful speech? First, you should have a good speech script (稿子) so that your ideas and language can attract people’s attention. And some skill...
【单选题】_______
A.
Individuals good at conversations may find it hard to make their first speech before a large audience.
B.
Students trained for their first public speeches should be given lessons in a conversational setting.
C.
The future of those people afraid of giving a public speech lies in the training of making wonderful conversations.
D.
Most individuals prefer to make a public speech in a conversational setting with an attentive audience.
【多选题】关于 Web crawler 的说明哪些正确
A.
称为网络爬虫
B.
又称为网页蜘蛛或网络机器人
C.
是一种按设定的规则，自动地去抓取万维网信息的网页内容、程序或者脚本(script)
D.
是搜索引擎重要的组件之一
【简答题】完成表格。阅读下面短文，根据其内容，完成表格中所缺的信息。 What makes a successful speech? First, you should have a good speech script (稿子) so that your ideas and language can attract people's attention. And some skills are neces...
【单选题】听力原文：People, even some who are wonderful talkers in a conversation or setting, are often terrified over the prospect of giving their first public speech. (23)
A.
Individuals good at conversations may find it hard to make their first speech before a large audience.
B.
Students trained for their first public speeches should be given lessons in a conversational setting.
C.
The future of those people afraid of giving a public speech lies in the training of making wonderful conversations.
D.
Most individuals prefer to make a public speech in a conversational setting with an attentive audience.
【简答题】阅读下列短文，根据短文中的信息完成文后表格。（每空一词) What makes a successful speech? First, you should have a good speech script (稿子) so that your ideas and language can attract people's attention. And some skills are necess...
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