单项选择题

Passage B
Questions 26 to 30 are based on the passage you have just heard.

A．Smaller circles.
B．Bands of color.
C．A large white disc.
D．Curved legs of light.
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填空题
This article focuses on the men at the level of ______.
单项选择题
A．Check the figures later today.B．Do the calculations again tomorrow.C．Bring a calculator tomorrow.D．Calculate the number right now.
A．Check the figures later today.
B．Do the calculations again tomorrow.
C．Bring a calculator tomorrow.
D．Calculate the number right now.
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