根据短文内容及首字母提示补全单词

Dogs are good pets. They are very f__小题1:____ to people and very beautiful. too. Most dogs get on very well with c_小题2:____and their parents. Others are good watch-dogs because they b__小题3:__ loudly when a stranger arrives. When you buy a dog. an important thing to think about is its s __小题4:____--- buy a small dog if your home is small and a bigger one if y___小题5:__is larger. Many people don’t know how much to feed their dogs. Dogs eat a___小题6:___ everything. They like meat. rice and lots of other things. You can buy lots of food made for dogs in s___小题7:_____. Don’t let your dog eat too much. F___小题8:__it only once a day. Always get w___小题9:___  for your dog. It can get thirsty(渴) very quickly. Remember that dogs need e___小题10:_____. You should take it for a walk every day.

（）是航天侦察的主要方式。

A.卫星侦察

B.航天器侦察

C.宇宙飞船侦察

D.火箭侦察