问题
选择题
如图所示,理想变压器原线圈输入交流i=Imsinωt,副线圈按有一电流表和负载电阻R,电流表的示数为0.10A.在t=![]() A.10:3 B.3:10 C.3:10 D.10 ![]() |
答案
答案:D
如图所示,理想变压器原线圈输入交流i=Imsinωt,副线圈按有一电流表和负载电阻R,电流表的示数为0.10A.在t=![]() A.10:3 B.3:10 C.3:10 D.10 ![]() |
答案:D
Read and choose.(根据问句选择合适的答语。) | |
( )1. Who gave a book to you? ( )2.Where is the book about animal? ( )3. Can you run fast? ( )4. When did your father come back? ( )5. Do you like chips? ( )6. What is he going to eat for dinner? | A.Sorry,l can't. B.Yes,l do. C.My teacher. D.Last week. E .Meat and fish F.It's in my bag. |