小丽同学手里有一个标有“3.8V”字样小灯泡,她想知道小灯泡正常工作时的电阻,于是在学校实验室找来一些器材连接了如图甲所示的实验电路,电源电压恒定不变.
⑴____ A. red B. then C. ticket D. spend
⑵____ A. maths B. thank C. think D. there
⑶____ A. weather B. bread C. tea D. breakfast
⑷____ A. toy B. boy C. goat D.coin
⑸____ A. find B. film C. five D. climb