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【单选题】
分析下列说法中正确的有的种数是 ①长方体、正方体都是棱柱 ②球体的三种视图均为同样大小图形 ③三棱柱的侧面是三角形 ④直六棱柱有六个侧面，侧面为长方形 ⑤圆柱的三视图中，主视图、左视图是长方形，俯视图是圆 [     ]
A.
2
B.
3
C.
4
D.
5
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参考答案：
举一反三
【单选题】听力原文：W: John bought a new motorcycle last week. M: No, he bought a new bike. Jim bought a new motorcycle. What did Jim buy?
A.
A motorcycle.
B.
A bike.
C.
A car.
查看完整题目与答案
【单选题】They used what they had _____ for their daughter.
A.
to buy a new dress
B.
buying a new clothes
C.
bought a new suit
D.
buy a new clothing
查看完整题目与答案
【单选题】听力原文：W: John bought a new motorcycle last week. M: No, he bought a new bike. Jim bought a new motorcycle. How long does it take the man to go to work in the morning?
A.
30 minutes．
B.
20 to 30 minutes．
C.
15 minutes．
查看完整题目与答案
【简答题】What was Reverend Mother’s suggestion to Maria?
查看完整题目与答案
【单选题】猿戏外练肢体的灵活性,内练抑制思想活动,达到思想清静,体轻身健的目的。要求意守( ),以求形动而神静。
A.
命门
B.
脐中
C.
中宫
D.
气海
查看完整题目与答案
【单选题】若R1={a，b)，R2={a，b，c，d)，则R1×R2集合中共有______个元组。
A.
2
B.
4
C.
6
D.
8
查看完整题目与答案
【单选题】Some new ______ she has bought for her new flat should be seen as well-designed.
A.
furniture
B.
property
C.
possession
D.
belongings
查看完整题目与答案
【单选题】猿戏外练肢体的灵活性,内练抑制思想活动,达到思想清静,体轻身健的目的。要求意守脐中,以求形动而神静。( )
A.
命门
B.
脐中
C.
中宫
D.
气海
查看完整题目与答案
【多选题】存储卡传输速度等级
A.
Class4
B.
Class2
C.
Class6
D.
Class10
查看完整题目与答案
【单选题】设关系R1有r1个元组，关系R2有r2个元组，则关系RI和R2连接后的结果关系的元组数目是______个。
A.
r1+r2
B.
r1*r2
C.
≤r1*r2
D.
≥r1*r2
查看完整题目与答案
相关题目：
【单选题】听力原文：W: John bought a new motorcycle last week. M: No, he bought a new bike. Jim bought a new motorcycle. What did Jim buy?
A.
A motorcycle.
B.
A bike.
C.
A car.
查看完整题目与答案
【单选题】They used what they had _____ for their daughter.
A.
to buy a new dress
B.
buying a new clothes
C.
bought a new suit
D.
buy a new clothing
查看完整题目与答案
【单选题】听力原文：W: John bought a new motorcycle last week. M: No, he bought a new bike. Jim bought a new motorcycle. How long does it take the man to go to work in the morning?
A.
30 minutes．
B.
20 to 30 minutes．
C.
15 minutes．
查看完整题目与答案
【简答题】What was Reverend Mother’s suggestion to Maria?
查看完整题目与答案
【单选题】猿戏外练肢体的灵活性,内练抑制思想活动,达到思想清静,体轻身健的目的。要求意守( ),以求形动而神静。
A.
命门
B.
脐中
C.
中宫
D.
气海
查看完整题目与答案
【单选题】若R1={a，b)，R2={a，b，c，d)，则R1×R2集合中共有______个元组。
A.
2
B.
4
C.
6
D.
8
查看完整题目与答案
【单选题】Some new ______ she has bought for her new flat should be seen as well-designed.
A.
furniture
B.
property
C.
possession
D.
belongings
查看完整题目与答案
【单选题】猿戏外练肢体的灵活性,内练抑制思想活动,达到思想清静,体轻身健的目的。要求意守脐中,以求形动而神静。( )
A.
命门
B.
脐中
C.
中宫
D.
气海
查看完整题目与答案
【多选题】存储卡传输速度等级
A.
Class4
B.
Class2
C.
Class6
D.
Class10
查看完整题目与答案
【单选题】设关系R1有r1个元组，关系R2有r2个元组，则关系RI和R2连接后的结果关系的元组数目是______个。
A.
r1+r2
B.
r1*r2
C.
≤r1*r2
D.
≥r1*r2
查看完整题目与答案
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