简述吻合器使用中的注意事项。
题型：问答题
问题：
简述吻合器使用中的注意事项。
题型：问答题
A school newspaper The Teens asked over one thousand teenagers how they spent their spare time. Here they report the r 小题1:of the survey. It’s not at all surprising to learn that most teens said they wanted more free time. Most have less than an hour a day for after-school activities.
P 小题2:activity was popular among both girls and boys, averaging between three to six hours a week. Favourite sports among girls were tennis, basketball and swimming. Boys said they liked football, basketball and skating.
Speaking of entertainment, music and TV were popular. About half of those surveyed said that music was their favourite activity. This i 小题3:both listening to and playing music. TV was also very popular. Three quarters said they preferred watching TV to reading a book or magazine.
Unexpectedly, as many as three out of ten teenagers mentioned that collecting things was something they liked to do in their spare time. They had v 小题4:collections from cartoon books and baseball cards to stickers, toys and coins.
V 小题5:friends was also popular. Eight out of ten teenagers said they met friends once a week. Nine out of ten said they contacted friends through the Internet. A 小题6:popular way of contacting friends was the telephone. Everyone we surveyed said they spoke to friends every day. Most said they spoke about twenty minutes a day. Surprisingly, teenagers s 小题7:went dancing, especially girls. Only one out of ten said they went to the dance regularly.