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冬虫夏草为 科真菌冬虫夏草菌寄生 科昆虫幼虫上的子座及幼虫尸体的复合体。
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【简答题】荷花的地下部分为根状茎,节间__ ,节部__ ,有须状不定根。
【简答题】The problem is that parents are only educating their children on how to take multiple-choice tests and how to study well, but parents are not teaching them the most important skills that they need to ...
【单选题】下列关于网络数据库和搜索引擎的说法，正确的是（）。
A.
网络数据库比搜索引擎的查找速度更快
B.
使用网络数据库比搜索引擎简单、方便
C.
网络数据库的专业性强，主题明确，相关性高
D.
网络数据库比搜索引擎检索的范围更广
【单选题】听力原文：This morning, we're going to look at how the market for the Internet and cell phone use has developed in this decade. To begin with, we' II look at the year 2000. At this time the country with th...
A.
Cultural differences between East and West
B.
Who spends the most time on the phone?
C.
The proportion of obese Internet users in the United States
D.
A comparison of mobile phone and Internet use in different countries
【单选题】You can declare variables with the same name multiple times _____.
A.
within a statement
B.
within a block
C.
within a method
D.
You never can declare multiple variables with the same name
【简答题】Which of the following about multiple sclerosis is true?_____ A: Multiple sclerosis can cause trauma and pain. B: Multiple sclerosis is a kind of communicable diseases. C: Multiple sclerosis is an inf...
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