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【单选题】
当一根流星线的实体逐渐变小,它最终会变成:
A.
蜻蜓十字线
B.
锤子线
C.
墓碑十字线
D.
以上都不对
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参考答案：
举一反三
【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
【多选题】与印金印银相比，由于金银墨长时间与空气接触会发生氧化反应，使金银色逐渐变暗、变黑，影响产品外观效果。而烫印使用的电化铝箔化学性质稳定，可以（）。
A.
长时间不变色
B.
成本较低
C.
循环使用
D.
长期保存
相关题目：
【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
【多选题】与印金印银相比，由于金银墨长时间与空气接触会发生氧化反应，使金银色逐渐变暗、变黑，影响产品外观效果。而烫印使用的电化铝箔化学性质稳定，可以（）。
A.
长时间不变色
B.
成本较低
C.
循环使用
D.
长期保存
参考解析：
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