赞题库-背景图
单项选择题

A．A school in California.
B．A student in London.
C．Home page on the Internet.
D．Computers in the classroom.
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热门试题

单项选择题A．They are never effective.B．They are simple to perform.C．They are not always very easy.D．They are usually valid.

A．They are never effective.
B．They are simple to perform.
C．They are not always very easy.
D．They are usually valid.

单项选择题A．He enjoyed using his new camera.B．He left his camera at the airport.C．He left his camera in his friend’s ear.D．He lost his camera on his trip.

A．He enjoyed using his new camera.
B．He left his camera at the airport.
C．He left his camera in his friend’s ear.
D．He lost his camera on his trip.