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A．They use a map and the memory of location.B．They use the sun and the stars.C．They us

A. They use a map and the memory of location.
B. They use the sun and the stars.
C. They use a map and the earth's magnetic field.
D. They have precise sense of time or may use the earth's magnetic field.

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May 5th 200_
Dear Mark,
Hello again! Here are my holiday plans. I'll leave on a tour of South-east Asia in August and will arrive in Singapore in September. Hope we'll be able to meet there. These are my travel plans:
August 28th London--Tokyo
September 1st Tokyo--Bangkok
September 4th Bangkok—Singapore
September 7th Singapore--Manila
September 9th Manila--London
Looking forward to seeing you again.
Best wishes,
Christopher
The letter is about______.

A. cities in South-east Asia.
B. holiday greetings.
C. sightseeing.
D. travel plans.

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听力原文：Due to the continual rain the school sports meet has been postponed again till further notice from the principal's office.
What does the speaker mean？

A. The sports meet has been cancelled.
B. The sports meet has been held despite the rain.
C. The time has been set for the sports meet.
D. When the sports meet will be held is yet to be known.

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在定义一个关系结构时，应该说明()。

A. 字段、数据项及数据项的值
B. 属姓名、属性数据类型及位数
C. 关系名、关系类型及作用
D. 记录名、记录类型及内容

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e=0.85时的基底压力最大值与下列______ 项值接近。

A. 387.5kN/m2
B. 393.6kN/m2
C. 400.1kN/m2
D. 409.1kN/m2

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A．They use a map and the memory of location.B．They use the sun and the stars.C．They us

A. They use a map and the memory of location. B. They use the sun and the stars. C. They use a map and the earth's magnetic field. D. They have precise sense of time or may use the earth's magnetic field.

听力原文：Due to the continual rain the school sports meet has been postponed again till further notice from the principal's office.What does the speaker mean？

在定义一个关系结构时，应该说明()。

e=0.85时的基底压力最大值与下列______ 项值接近。

A. They use a map and the memory of location.
B. They use the sun and the stars.
C. They use a map and the earth's magnetic field.
D. They have precise sense of time or may use the earth's magnetic field.

听力原文：Due to the continual rain the school sports meet has been postponed again till further notice from the principal's office.
What does the speaker mean？