单项选择题

Questions 4 to 6 are based on the following conversation.
What did space satellites capture recently

A. The formation of ocean water.
B. Comets colliding with the earth’s atmosphere.
C. Comets collisions and cosmic dust.
D. Comets falling into the ocean water.

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问答题

Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last rending will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.

Questions 4 to 6 are based on the following conversation. What did space satellites capture recently 您的浏览器不支持 audio 元素。

Questions 4 to 6 are based on the following conversation.
What did space satellites capture recently