— Of course. Paris, ________ capital of France, has a lot of ________ places of interest.
A:the; a
B:the; /
C:a; a
D:a; /
某同学用如图甲所示的器材和电路测量电源电动势和内电阻.
106×72÷48=____
26460÷28÷63=____
对下列实验的描述不正确的是( )