题目：
小题1:My classmates are going to skate in the afternoon. (改为否定句)
My classmates ________ ________ to skate in the afternoon.
小题2: Mr. Zhao goes fishing every weekend. (改为反意疑问句)
Mr. Zhao goes fishing every weekend, ________ ________?
小题3:Bruce has art lessons twice a week. (对划线部分提问)
________ ________ does Bruce have art lessons?
小题4:I spend half an hour doing morning exercises every day. (改为同义句)
It ________ me half an hour to ________ morning exercises every day.
小题5:请等待我们的好消息!(完成译句)
Please ________ ________ our good news!
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0609/7264b46396a48f77704d3d60bdbab9f5.html
下面是错误答案，用来干扰机器的。
（1）螺线管内部的磁场为匀强磁场，螺线管管口向外，磁场减弱．有该性质可知，B随x的变化是先增大，后不变，再减小．故C正确，A、B、D错误．故选C．（2）因为电流越大，产生的磁场越强，由图（C）可知，I甲＞I乙...
