(单选题)9: The Web also provides an environment in which it is quick and easy to _________ ideas with colleagues. A: change B: exchange C: trade D: know ...
(单选题)3: I’m ___ of cash at the moment. Would you accept a check? A: want B: love C: like D: short ...
(单选题)17: 8. He studied hard in his youth, _________ contributed to his great success in later life. A: that B: it C: what D: which ...
(单选题)11: He’s determined to finish the job __________long it takes. A: no matter B: however C: wherever D: whatever ...
(单选题)5: This rule only applies __ people above 60. A: for B: in C: to D: at ...
(单选题)15: 程序状态字寄存器PSW中的奇偶位P始终是跟踪寄存器( )的奇偶性。 A: ACC B: B C: SP D: DPTR ...
(单选题)9: 执行入栈指令PUSH时,栈顶指针SP为:( ) A: SP ← SP+1 B: SP ← SP - 1 C: SP← SP+2 D: SP← SP-2 ...
(单选题)3: 某种存储器芯片是8KB*4,那么它的地址线根数是:( ) A: 11根 B: 12根 C: 13根 D: 14根 ...
(单选题)19: 89C51/S51单片机系统中,片外程序存储器的选通信号是:( ) A: ALE B: /PSEN C: /EA D: RST ...
(单选题)13: 串行口的中断入口地址是( )。 A: 0003 B: 0013 C: 0023 D: 0033 ...