From the first three paragraphs, we learn that ______. According to the text, "nuclear tipped missiles" and "cannonball-size st

admin2013-06-10  24

问题 From the first three paragraphs, we learn that ______.
According to the text, "nuclear tipped missiles" and "cannonball-size steel spheres" (Para. 5) ______.

选项 A、are different in nature.
B、serve similar functions.
C、are identical to each other.
D、pose real challenges.

答案B

解析
转载请注明原文地址:https://kaotiyun.com/show/ved4777K
0

最新回复(0)