单项选择题

光电效应实验说明光具有波动性
A、正确
B、错误

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单项选择题

Concerning the basilic vein, which is true?
A、begins at the ulnar side of the dorsal venous network of hand
B、begins at the radial part of the dorsal venous network of hand
C、ascends along the lateral part of the arm
D、passes through the groove between the pectoralis major and deltoid
E、ends in the subclavian vein