September 2019 2 43 Report
Orang yg pekerjaannya meresparasi jam tangan biasanya dalam bekerja dibantu dgn lensa...
A. Lensa cekung supaya mengumpulkan cahaya
B. Lensa cembung supaya mengumpulkan cahaya
C. Lensa cekung supaya menyebarkan cahaya
D. Lensa cembung supaya menyebarkan cahaya
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