假设h是基本块出口的活跃变量, r0和r1是可用寄存器,对下列四元式组成基本块: a:=b*c d:=e f g:=a d h:=g*2 生成目标代码如下: ld r0, b mul r0, c ld r1, e add r1, f add r0, r1 mul r0, 2 其中空白处的代码为
将语句 if (a<0) then while (c>0) do c:=c-d 翻译成下面的四元式序列,其中空白处应该填写: 100 (j<, a, 0, 102) 101 (j, -, -, 107) 102 (j>, c, 0, 104) 103 (j, -, -, 107) 104 (-, c, d, t1) 105 (:=, t1, -, c) 106 107 ……
早期管理信息系统失败的主要原因是()。
好的数学问题不具有的特点是( )。
directions: different listening strategies which are associated with either top-down or bottom-up processing. decide which strategies they use: top-down or bottom-up. predicting the content of a lecture or short talk on a subject that the listener knows something about.
deduction is inference deriving logical conclusions from premises known or assumed to be true, with the laws of valid inference being studied in logic.
directions: complete the response to jack's questions below. why don't we in my opinion how about i'm afraid i see i think jack: the proposal is the we change our logo and rethink our brand image. so, what are your views on this. mary: ____________ (1), this is the only way to solve our current problems.
directions:read the following descriptions carefully , decide whose corporate culture it belongs to? _________ has the following main characteristics: 1. entire company aligned behind common vision, values, and goals. 2. teams work together for the good of the customer. 3. employees take ownership and responsibility for their actions. 4. motivation, morale and engagement is high. 5. strong communication and collaboration. 6. deliver a world class customer experience. 7. foster innovation, creativity and entrepreneuriali. 8. design is everything. 9. designers make the design decisions. 10. they do no market research.
what is the biggest advantage of hierarchical structure?
3. the declaration deals with disarmament and the non-_____________ of nuclear weapons.