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【简答题】
“在阳光普照的时候，你只当它烛光闪耀；在花园锦簇的时候，你只当它小草萌发；在硕果累累的时候，你只当它流星闪过。”对于这句话，你怎么理解
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】哪位古代光学家首次对烛光的性质进行定量实验和数学证明，在研究中将光与视觉的行为分离，实现在光与视觉思想上的关键突破。
A.
金迪
B.
伊本•海赛姆
C.
欧几里德
D.
开普勒
【单选题】Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on (68) . Light gets through, ...
A.
from
B.
than
C.
as
D.
away
【单选题】Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars．The atmosphere again acts 【C1】______ our protective blanket on 【C2】______ ．Light gets...
A.
for
B.
with
C.
on
D.
as
【单选题】Space is a dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and...
A.
The Atmosphere and Our Environment
B.
Research on Radiation
C.
Effects of Space Radiation
D.
Importance of Protection Against Radiation