20世纪下半叶出现了以美苏对峙为标志的、长达40多年的“冷战”局面，根据你学习过的有关“冷战”史实，请判断以下属于“冷战”范畴的有（     ）

①杜鲁门主义的出台 ②马歇尔计划的实施 ③科索沃战争 ④北约和华约两大军事集团的建立

一 Do you know how the guide dogs help the blind?

一 Yes, they can         the blind to         they want to go.

把正确答语前的字母填到横线上

①6How many birds do you see?____

②I'd like car 18,please.____

③What's this?____

④How many balls do you have?____

a. I have 11.     b. OK        c. My new crayons      d. I see 15.