某计算机的主存为3KB,则内存地址寄存器( )位就足够了。
A.10
B.11
C.12
D.13
参考答案:C
—Excuse me. I’m looking for Be the Best of Yourself.
—Sorry. The book you ask for______ out.
A.is selling
B.is sold
C.was selling
D.will be sold
高温变换催化剂是制氨厂最关键的经济型催化剂。