（）中第一次规定了民主集中制的基本要求。
A.党的六大 * *
B.党的七大 * *
C.党的八大 * *
参考答案：A
Hearing the news about Neil Armstrong's death,____．
A．my heart missed a beat
B．my mind went empty
C．the newspaper shook with my hands
D．I was greatly shocked
由于每执行一条指令需要访问______次内存，所以为了提高地址映射速度引入快表。
