3,6,9,8,27,( ),( )
A.10,81
B.10,30
C.9,21
D.12,20
参考答案:A
—There _______ a football match this evening.
—Exciting news.
A. are going to be B. is going to be C. is going to have
微型计算机里把运算器和控制器两部分做成一块集成电路,称之为(),用符号()表示。它是单片机的核心,完成()。