问题
补全对话，情景问答
| 根据图片内容，完成下列对话。 |
1. | —What's the like today? —It's a day. |
2. | —Excuse me! Can you tell me the to the hospital? —OK, go straight ahead and turn at the corner. |
3. | —How does she usually go to school? —She usually to school . |
答案
1. weather sunny 2. way right second 3. goes by bike
时（T为交流的周期），原线圈中的电流瞬时值为0.03A．变压器的原、副线圈的匝数比为（ ）
：3