【单选题】Our headmaster felt fairly happy today because ten students were praised at the meeting, _____th
A.
27. Our headmaster felt fairly happy today because ten students were praised at the meeting, _____three were from our school. A.for them
【单选题】下列几类文件中,不属于规范性文件的是()
【单选题】石油沥青的塑性是指()。
B.
石油沥青的黏滞性和塑性随温度升降而变化的性能
C.
石油沥青在外力作用下产生变形而不破坏,除去外力后仍保持变形后的形状不变的性质
D.
石油沥青在热、阳光、氧气和潮湿等因素的长期综合作用下抵抗老化的性能
【简答题】基尔霍夫第二定律又称()定律,这一定律是()原理的体现。
【单选题】已有定义 "int i; float f; char ch [50]; ”,为使 i 得到值 1,f 得到值 3.1416.ch 得值 it. 当执行语 " “ scanf(" %3d%f%2s", &i, &f, ch);" 时,正确的输人形式是
D.
i=001, f=3. 1416,ch=it
【单选题】The mayor praised the Lei Feng Spirit that could be found everywhere in the city and paid particular __________ to youngsters who helped the elderly.