三年级有157人,四年级有186人,三、四年级一共有多少人?
157+186=343(人);
答:三、四年级一共有343人.
根据句意和汉语提示写出所缺单词的正确形式。
小题1:Many students ask for ___________ (建议)about how to improve their English.
小题2:My home town is especially ____________ (闻名)for its university.
小题3:That means we have a better ___________ (机会) of winning.
小题4:A ___________ (旅行) by train is more relaxing than by coach.
小题5:It’s sad to think of pandas and other animals in ____________ (危险).
小题6:The car stopped just in time, but the boy ______________ (跌落) off his bike.
小题7:I was_____________ (试图) to pick up the snake when it bit me again.
小题8:There are ______________ (暴风雨) from time to time in summer and autumn.
小题9:For ____________ (例子),you must say Mr or Mrs when you meet someone for the first time.
小题10:But he could have ____________ (困难) hearing you or speaking to you.
轮胎式压路机的优点?