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【简答题】
外部中断的发生和进入中断服务程序是有条件的,一个是 EA=1; IT0=_______________ EX0=________________,且外部中断引脚INT0(*)上出现低跳变信号。
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反馈参考答案：
举一反三
【单选题】溶菌酶的溶菌作用机制是
A.
裂解细胞壁聚糖骨架上的β-1，4糖苷键
B.
抑制细菌mRNA表达
C.
破坏细胞壁上的磷酸壁
D.
抑制细胞壁肽聚糖上四肽侧链与五肽桥的交联
E.
抑制细菌DNA转录
【单选题】The purpose of the research conducted 15 years ago was to ______.
A.
find out the age groups of the TV audience
B.
assess some famous TV shows
C.
study the effects of violent TV shows on children
D.
evaluate the relationship between TV shows and crimes
【判断题】The strength ofan individual fiber or a brittle material is adversely affected by defects or flaw.
A.
正确
B.
错误
【简答题】Foreign drivers will have apay on-the-spot fines of up to ￡ 900 for breaking the trafficlaw to be carried our next month. 21cnjy If they do not have enough cash or a working creditcard, their vehicles...
【简答题】房地产的特性有哪些? 房地产的类型有哪些? 房地产状况的描述可分几部分?
【单选题】The purpose ofan agency relationship is to form a business contract between which of thefollowing parties?
A.
Agent and principal
B.
Agent and third party
C.
Principal andthird party
D.
Principal,agent and third party
【单选题】In “How to spot a liar,” Pamela Meyer explained how we could spot a liar by examining his/her verbal performance and bodily performance. For this part, then, she was using ____:
A.
Chronological organization
B.
Spatial organization
C.
Problem-solution organization
D.
Topical organization
【单选题】Using the spotter, spot a small amount of each solution about 0.5 cm from the bottom of the plate, a similar distance between each spot.
A.
leaving
B.
with
【单选题】Using the table shown, what is the spot cross-exchange rate between pounds and euro?
A.
€1.00 = £0.75
B.
£1.33 = €1.00
C.
£1.00 = €0.75
D.
none of the above
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