⑴Can you help me, please?____
⑵Where is my coat?____
⑶Are they pants?____
⑷Whose dress is this?____
⑸Is this your hat?____
A. No, they aren't.
B. Yes, it is.
C. It's Kate's.
D. OK.
E. It's on the bed.
电压表(0~3V,0~15V);
电流表(0~0.6A,0~3A);
滑动变阻器A(0~10Ω);
滑动变阻器B(0~200Ω);
阻值为5Ω、10Ω的定值电阻各一个;
两节干电池、开关和导线若干.
正方体的体积和棱长.
A____B____C____D____