锻丝上返卡环环抱稳定作用差的原因是没有()
A.卡环体
B.连接体
C.支托
D.固位臂
E.对抗臂
参考答案:A
锻丝上返卡环环抱稳定作用差的原因是没有()
A.卡环体
B.连接体
C.支托
D.固位臂
E.对抗臂
参考答案:A
Mr Smith, Sandra, Rachel, Duane和the Greens正各自安排活动。请仔细阅读题中的个人情况说明和A到F的活动场地介绍,选出符合各自要求的最佳选项,选项中有一项是多余的选项。 小题1:Mr Smith, an American, is on business in Japan. Tomorrow he would like to visit some famous attractions. He and his assistant both love climbing very much. 小题2:Sandra is very tired because of weeks of hard work at her lessons. Now she has come up with an idea: Why not try to take a relaxing visit in Britain? 小题3:Rachel is a hard-working student. She will head for geography in the middle school. This summer she is going to travel across a dessert in a certain country. 小题4:Duane is an active and energetic student. He has a special interest in the great champions and their achievements. He really hopes to find a wonderful place for the coming weekend. 小题5:The Greens, who love the sea and enjoy the sunshine, have prepared for travelling abroad. During the trip, they are going to buy some souvenirs for their friends.
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