题目

下列函数中为偶函数的是                           （    ） A．        B． C．         D． 答案：A 用方框中所给单词的适当形式填空。 go，milk，plant，careful，strong 1．--Will you please bring me some         , Sally? --All right． 2．We have           hundreds of trees in the park recently． 3．The wind is blowing          now．I have to stay at home． 4．Be          , or you will make mistakes in your English exam． 5．China’s first moon satellite Chang’e I            into space in October, 2007．