(单选题)21: —“May I speak to your manager Mr. Williams at five o’clock tonight?”—“I’m sorry. Mr. Williams ________ to a conference long before then.” A: will have gone B: had gone C: would ...

(单选题)15: He is ________ about his chances of winning a gold medal in the Olympics next year. A: optimistic B: optional C: outstanding D: obvious ...

(单选题)22: ________ she realized it was too late to go home. A: No sooner it grew dark than B: Hardly did it grow dark that C: Scarcely had it grown dark than D: It was not until dark that ...

(单选题)16: In order to show his boss what a careful worker he was, he took ________ trouble over the figures. A: extensive B: spare C: extra D: supreme ...

(单选题)10: The growth of part-time and flexible working patterns, and of training and retraining schemes, ________ more women to take advantage of employment opportunities. A: have allowed B: allow C: allowing D: allows ...

(单选题)4: Sometimes I wish I ________ in a different time and a different place. A: be living B: were living C: would live D: would have lived ...

(判断题)23: 时钟电路用于产生单片机工作所需要的时钟信号（） A: 错误 B: 正确 ...

(多选题)17: 单片机与普通计算机的不同之处在于其将 （）、（） 和（） 三部分集成于一块芯片上 A: CPU B: 存储器 C: I/O口 D: 显示器 ...

(单选题)5: 在寄存器间接寻址方式中，其“间接”体现的是操作数的 （） A: 数据 B: 内容 C: 地址 D: 都不正确 ...

(判断题)24: 立即寻址方式是被操作的数据本身在指令中，而不是它的地址在指令中（） A: 错误 B: 正确 ...