题目内容

When is the Autumn Equinox time？

At around September 23rd.
B. At around September 24th.
C. At around September 25th.
D. At around September 26th.

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Dunhuang is in ________ China.

A. Northwestern
B. Northeastern
C. Southwestern
D. Southeastern

The trading route of the silk road began ever since Han dynasty of ______ years ago.

A. 2200
B. 2000
C. 1800
D. 2300

Dunhuang now has a base of ______ mu of cotton,which makes it the largest colored cotton testing station and production base for green cotton in China.

A. 18000
B. 20000
C. 15000
D. 10000

Every mu of the colored cotton people can earn an extra _____ yuan over ordinary white cotton.

A. 600
B. 500
C. 700
D. 800