— Many people have been out of work in China.  

— And _________that the government is always takingmeasures to increase the number of

employment.   [ ]

A.in spite of                  

B. because of    

C. thanks to                        

D. in addition to

设8253的端口地址为889CH～889FH(通道0端口地址为889CH)，在计数器1上，输入6MHz的脉冲信号，要求输出频率为2KHz的方波，采用二进制计数。填空完成以下初始化程序段，初始化时无关位默认为0。MOV DX， ______(1)______ MOV AL，______(2)______ OUT DX，AL；初始化定时器，写入方式控制字MOV DX，______(3)______ MOV AX，______(4)______ OUT DX，AL；写入计数初始值低8位MOV AL，______(5)______ OUT DX，AL；写入计数初始值高8位答：(1)______ (2)______ (3)______(4)______ (5)______