【判断题】数字式万用表在电阻档时,红表笔接二极管的正极,黑表笔接二极管的负极,测得的是二极管的正向电阻。
【判断题】数字万用表来测二极管的正向电阻时,红笔接二极管的正极,黑笔接负极。( )
【判断题】用数字万用表测二极管的正向电阻,红笔接正极
【判断题】用数字式万用表测量二极管的正向电阻时,应将万用表的红表笔接二极管的阳极,黑表笔接二极管的阴极。
【单选题】No sooner had Tom seen Jim ______ he left the room.
【单选题】He left the room, _________.
A.
his nose bled, his hands shake
B.
. his nose bled, his hands shaking
C.
his nose bleeding, his hands shake
D.
his nose bleeding, his hands shaking
【单选题】He is a forgetful boy. He often _____ his keys in the room.