问题
选择题
下列光学仪器中,利用凸透镜成放大倒立实像的是[ ]
A.放大镜
B.潜望镜
C.幻灯机
D.照相机
答案
答案:C
下列光学仪器中,利用凸透镜成放大倒立实像的是[ ]
A.放大镜
B.潜望镜
C.幻灯机
D.照相机
答案:C
根据材料内容从各题后所给的选项中选出最佳答案。 | |
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1. If you want to join the Sunshine Rock Band, you should play the _____ well. | |
A. piano B. guitar C. Drum D. violin | |
2. Who can teach you to play table tennis ? | |
A. Mike B. Joe C. Mr Zhang D. Karen | |
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A. Fridays B. Saturdays C. Sundays D. Mondays | |
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5. The ads above may be from _____. | |
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