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Since sick building syndrome (综合病症) (SBS) shares symptoms with many prevalent maladies (疾病), from the common cold to allergies and asthma, it can be easily overlooked. The condition is typically recognized only after a group of people occupying the same building come down with the classic symptoms, especially if those symptoms wane during the evening and on weekends. Given a poorly ventilated (使通风), airtight (不漏气的，密封的)building, SBS is believed to be caused by one of two general categories of pollution. The first, typical of flew or newly renovated buildings, is chemical pollution. That "new smell" you get when first moving into a new house is actually the odor of chemical vapors being given off by paint, glue (胶), carpeting and other construction materials. Formaldehyde (甲醛), which is considered a probable hum A. SBS is actually some kind of prevalent maladies. B. SBS has similar symptoms to those of many prevalent maladies. C. SBS has a specific symptom different from that of any other maladies. D. None mentioned in the article. [判断题]国际单位制包括SI单位、SI词头和SI单位的十进倍数与整数单位三部分。( )
[填空题]下列程序执行后，SI寄存器中的内容是 【1】 。
MOV SI，-1 MOV CL，4 SAL SI，CL AND SI，5FFOH OR SI，9FOFH NOT SI [单项选择]下列程序执行后，(SI)为( )。
MOV CX，5 MOV SI，4 A. LOOP A14 B. 5 C. 14 D. 15 [简答题]Si具有金刚石型结构，试求Si的四面体结构中两共价键间的夹角。
[单项选择]下列程序执行后，SI寄存器中的内容为( )。
MOV SI， -1 MOV CL， 4 SAL SI， CL AND SI， 7FFFH OR SI， 7800H NOT SI A) 0FH B) FOH C) FFH D) 00H [单项选择]照射量的SI单位是
A. C·kg-1(库伦每千克) B. R(伦琴) C. 居里 D. mR/h E. Gy(戈瑞) [填空题]下列程序执行后，SI寄存器中的内容是 【1】 。
MOV SI，-1
MOV CL，4
SAL SI，CL
AND SI，5FFOH
OR SI，9FOFH
NOT SI
[填空题]下列程序执行后，SI寄存器中的内容是______。
1 MOV SI， -1 2 MOV CL， 4 3 SAL SI， CL 4 AND SI， 7FFFH 5 OR SI， 8000H 6 NOT SI [填空题]下列程序执行后，SI寄存器中的内容是 【3】 。
MOV SI，-1
MOV L，4
SAL，SI，CL
AND SI，7FFFH
OR SI，8000H
6．NOT SI
[填空题]下列程序执行后，SI寄存器中的内容是______。
MOV SI，-1
MOV CL，4
SAL SI，CL
AND SI，5FF0H
OR SI，9FOFH
NOT SI
我来回答: 提交
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