(单选题)1: — Could I use your car tomorrow morning? — Sure. I ________ a report at home. A: will be writing B: will have written C: have written D: have been writing ...
(单选题)15: He felt it rather hard to be _____ the opinion of the majority. A: with B: of C: in D: against ...
(单选题)9: I ____writing the article by the time you get back. A: shall finish B: must have finished C: have finished D: shall have finished ...
(单选题)3: My room is a mess. It needs _____. A: to be tidying up B: tidying up C: to tidy up D: tidied up ...
(单选题)5: 89C51/S51单片机的程序计数器PC为16位计数器,其寻址范围是:( ) A: 4KB B: 8KB C: 16KB D: 64KB ...
(单选题)19: 若GATE=0,则使TR0=( )就可启动定时器T0计数。 A: 0 B: 1 C: 00 D: 11 ...
(单选题)13: 89C51串口缓冲器SBUF,由于只有一个地址(99H),所以它( )。 A: 只能用于发送 B: 只能用于接收 C: 既可用于接收又可用于发送 D: 既不能用于接受也不能用于发送 ...
(单选题)1: 89C51/S51单片机片内程序存储器范围为:( ) A: 00H~FFH B: 0000H~0FFFH C: 0000H~FFFFH D: 00H~7FH ...
(单选题)17: 题目及选项见下图: A: A B: B C: C D: D ...
(单选题)5: 片外程序存储器中的数据传送到累加器A中,应采用哪条指令? A: MOV A,@R0 B: MOV A,@R1 C: MOVC A,@A+DPTR D: MOVX A,@DPTR ...