单项选择题

A．Progress in medicine.
B．Progress in computers.
C．Progress in new materials.
D．Progress in helicopters.
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单项选择题
A．They both attended the meeting.B．Neither of them attended the meeting.C．The man attended the meeting but the woman didn’t.D．The woman attended the meeting but the man didn’t.
A．They both attended the meeting.
B．Neither of them attended the meeting.
C．The man attended the meeting but the woman didn’t.
D．The woman attended the meeting but the man didn’t.
单项选择题
A．The jet plane.B．The radio.C．Movies with sound.D．The computer.
A．The jet plane.
B．The radio.
C．Movies with sound.
D．The computer.
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