Until recently most historians believed that trade along the Silk Road .
A. originated in the 2nd century BC
B. extended human migration into eastern Asia
C. began a million years ago
D. primarily benefited the Egyptians
第1题:
Silk( )by Chinese for thousands of years now.
A. has used
B. has been used
C. was used
D. is used
第2题:
Silk__________ (feel) soft and cool.
第3题:
Silk()by Chinese for thousands of years now.
Ahas been used
Bwas used
Cis used
第4题:
51_______.
A.understand
B.explain
C.believe
D.question
第5题:
Silk()by Chinese for thousands of years now.
Ahas used
Bhas been used
Cwas used
Dis used
第6题:
【单选题】Lesson 15 词汇拓展-词汇选择-2 The Team Resource Management ________from Cockpit Resource Management which has been embodied in flight crew training to increase human performance and teamwork
A.extracted
B.derived
C.descended
D.originated