单项选择题


Passage Three
Questions 32 to 35 are based on the passage you have just heard.

A．Because small earplugs are less effective in music transmission.
B．Because small earplugs are provided by most music players.
C．Because large earphones may better block off outside noise.
D．Because large earphones may offer a louder music sound.
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单项选择题
A．Snow crystals may stick together to make a snowflake.B．Dusts may join together to form a snowflake.C．Snowflakes is produced by snow storms.D．Raindrops may freeze to form snowflakes.
A．Snow crystals may stick together to make a snowflake.
B．Dusts may join together to form a snowflake.
C．Snowflakes is produced by snow storms.
D．Raindrops may freeze to form snowflakes.
单项选择题
A．He would have been on a field trip.B．He would have been swimming and enjoying the sunshine.C．He would have been studying most of the time.D．He would have been staying in the house.
A．He would have been on a field trip.
B．He would have been swimming and enjoying the sunshine.
C．He would have been studying most of the time.
D．He would have been staying in the house.
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