单项选择题

A. They are cheaper.
C. They are simpler to drive.
B. They do not pollute.
D. They are faster.
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单项选择题
A. To show a videotape on survival in outer space. C. To describe her experience on space missions. B. To gain support for the space program. D. To inform the audience about the space suit.
A. To show a videotape on survival in outer space. C. To describe her experience on space missions.
B. To gain support for the space program. D. To inform the audience about the space suit.
单项选择题
A. She has another meeting. C. She thinks it would be wrong to change the grade. B. She feels the grade is all right. D. She can meet with the student that afternoon.
A. She has another meeting. C. She thinks it would be wrong to change the grade.
B. She feels the grade is all right. D. She can meet with the student that afternoon.
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