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【單選題】
為了向外星人表達(dá)地球的外貌特征，在“旅行者號(hào)”探測(cè)器所攜帶的“地球之音”唱片中有地球的彩色照片。這里科學(xué)家選擇圖像作為信息的（ ）
A.
交流工具
B.
表達(dá)技術(shù)
C.
規(guī)范化
D.
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舉報(bào)參考答案：
舉一反三
【單選題】In public places, we can often see ______ that tell us useful things, such as no parking, no smoking, etc.
A.
symptoms
B.
signs
C.
systems
D.
signals
【單選題】I want to treat our guests to a big dinner. Please help me ______ some tables in the restaurant.
A.
buy
B.
book
C.
borrow
D.
order
【單選題】What are scientists worried about when it comes to plants according to the article?
A.
Plants may not be able to adapt to the increasingly cold climate.
B.
Human activities might h ave a great impact on the pace of plants’ evolution.
C.
Plants may not be able to evolve fast enough to adapt to human-caused climate change.
D.
The strategies plants develop are not good enough to protect them against cold.
【單選題】According to the article, if a plant freezes in the winter, ______.
A.
it produces more living tissues to stay alive
B.
its leaves quickly fall out and its roots begin to die
C.
lots of air bubbles form in its water transport system
D.
its water transport system could be blocked in the spring
【單選題】The teacher always asks the students to go over their exercises to ______ there are no mistakes.
A.
look for
B.
make sure
C.
find out
D.
think about
相關(guān)題目：
【單選題】In public places, we can often see ______ that tell us useful things, such as no parking, no smoking, etc.
A.
symptoms
B.
signs
C.
systems
D.
signals
【單選題】I want to treat our guests to a big dinner. Please help me ______ some tables in the restaurant.
A.
buy
B.
book
C.
borrow
D.
order
【單選題】What are scientists worried about when it comes to plants according to the article?
A.
Plants may not be able to adapt to the increasingly cold climate.
B.
Human activities might h ave a great impact on the pace of plants’ evolution.
C.
Plants may not be able to evolve fast enough to adapt to human-caused climate change.
D.
The strategies plants develop are not good enough to protect them against cold.
【單選題】According to the article, if a plant freezes in the winter, ______.
A.
it produces more living tissues to stay alive
B.
its leaves quickly fall out and its roots begin to die
C.
lots of air bubbles form in its water transport system
D.
its water transport system could be blocked in the spring
【單選題】The teacher always asks the students to go over their exercises to ______ there are no mistakes.
A.
look for
B.
make sure
C.
find out
D.
think about
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