A:turning away
B:turning out
C:turning off
D:turning i
— Simon, when are we going to have a class meeting this week? — Sorry. Ask our monitor, please. He know.
某同学将一段细铜丝在一只铅笔上单层紧密地缠绕了20圈,形成一个钢丝圈,再用一把刻度尺取测量该铜丝圈的长度,测量情况如图1所示,该细铜丝的直径为____cm,在图2中体温计示数是____℃,在图3中弹簧测力计的示数是____N