量取一定体积的液体时必须用到的是( )
A.
B.
C.
D.
答案:A
某Excel工作表如下所示,若在D1单元格中输入=$A$1+$B$1+C1,则D1的值为(1);此时,如果向垂直方向拖动填充柄至D3单元格,则D2和D3的值分别为(2)。
空白(2)处应选择()
A.79和99
B.69和93
C.64和60
D.79和93
Lack government support, they had to approach sponsors, organizers, and musicians on their own—at first, she claims, in her country.
A.Lacks
B.Lacked
C.Lacking
D.A lack of