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【单选题】
下列关于生态系统的叙述,不正确的是()
A.
在生态系统中,个体数量越庞大,食物链就越多,其抵抗力稳定性就越高
B.
引入外来物种不一定增加当地的生物多样性
C.
保护森林就是将合理利用森林资源和保护森林资源有机结合起来
D.
蜜蜂通过“跳舞”告诉同伴蜜源属于行为信息
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参考答案:
举一反三
【简答题】Passage 26 There are between 3,000 and 6,000 public languages in the world, and we must add approximately 6 billion private languages since each one of us 1) _____ has one. Considering these facts, th...
【单选题】Successful Language Learners Some people seem to have a knack for learning languages. They can pick up new vocabulary, master rules or grammar, and learn to write in the new language more quickly than...
A.
Ways to learn a language Successfully
B.
Learning to Language Purposefully
C.
Learning a Language Actively
D.
Learning a Language Independently
E.
Learning from Mistakes
F.
Learning to Think in the Target Language Paragragh1______.
【单选题】先导式溢流阀的导阀没有开启时,其主阀芯上、下腔的压力是个什么关系?
A.
相等
B.
不等
C.
上腔的压力小于下腔压力
D.
上腔的压力大于下腔压力
【判断题】(判断题)云南的沧源崖画是我国目前发现的最古老的崖画之一,产生于30000多年前的新石器时代晚期( )。
A.
正确
B.
错误
【多选题】显卡的输出接口主要有哪几种?
A.
VGA
B.
PCI
C.
DVI
D.
HDMI
【单选题】Ziad Fazahs example shows that
A.
few anecdotes seem to hold water.
B.
Ziad Fazah was quite fraudulent.
C.
viewers were mad at his performance.
D.
it's really hard to switch between languages.
【单选题】Which of the following is NOT true according to the passage?
A.
Language is to be viewed with ranks or grades.
B.
Most languages of 'backward' groups are complex enough to express ideas.
C.
Generally languages are probably developed from simple sounds.
D.
All languages seem to possess the system for vocabulary expansion.
【单选题】People who learn languages easily seem to have a for learning them.
A.
desire
B.
skill
C.
knack
D.
will power
【单选题】Which of the following isNOT true according to the passage?
A.
Language is to be viewedwith ranks or grades.
B.
Most languagesof“backward”groups are complex enough to express ideas.
C.
Generally languages areprobably developed from simple Sounds.
D.
All languages seem topossess the system for vocabulary expansion.
【简答题】请在横线上写出修改后的单词。 Studying foreign languages seem to be a global tend these days. ______
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