某同学在探究规格为“,”的小电珠伏安特性曲线实验中: ①在小电珠接入电路前,使用多用电表直接测量小电珠的电阻,则应将选择开关旋至 档进行测量。(填选项前的字母) A、直流电压 B、直流电流 C、欧姆 D、欧姆 ②该同学采用图甲所示的电路进行测量,图中R为滑动变阻器(阻值范围,额定电流),L为待测小电珠,V为电压表(量程,内阻),A为电流表(量程,内阻),E为电源(电动势,内阻不计),S为开关。 Ⅰ、在实验-Have you seen ________ colourful pen? I put it here just now.
-Is it ________ orange one? A tall boy has taken it away.
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A./;anB.the;the
C.the;/D.a;an