1. The advantages of distance learning are that(). A. it saves students from the trouble of traveling B. it is much more efficient than classroom learning C. it saves money and energy D. more people can get better and qualified educati...

18. Seeing from a distance, it looked like a human face. A. 错误 B. 正确 ...

9: He couldn't tell ____ from a distance whether it was Sam or his brother . A: at large B: in name C: for sure D: in short ...

21: From the shore-line out to a distance which may be anywhere from a few miles to a few hundred miles run the gentle slopes of the continental shelf, geologically part of the continents. 从海岸线延伸到远处，有一个从数百英里的大陆架的缓坡...

13: economy of distance是指（ ）。 A: 规模经济 B: 成本经济 C: 距离经济 D: 区域经济 ...

13: economy of distance是指（ ）。 A: 规模经济 B: 成本经济 C: 距离经济 D: 区域经济 ...

16. At first, the__of color pictures over a long distance seemed impossible, but, with painstaking efforts and at great expense, it became a reality. A. transaction B. transmission C. transformation D. transition ...

24. He couldn't tell ____ from a distance whether it was Sam or his brother . A. at large B. in name C. for sure D. in short ...

12: The cost of the ticket is ( ) to the distance you travel. A: proportion B: proportionate C: in proportion D: Both B and C ...

7. The cost of the ticket is ( ) to the distance you travel. A. proportion B. proportionate C. in proportion D. Both B and C ...