题型:填空题 读一读,选出不同类的单词。( ) 1. A. window ( ) 2. A. wall ( ) 3. A. tree ( ) 4. A. behind ( ) 5. A. car ( ) 6. A. desk B. seat B. floor B. grass B. under B. boat B. chair C. door C. bed C. duck C. play C. bus C. picture 查看答案
题型:填空题 若有定义:char *st="how are you";下列程序段中正确的是( )。A.char a[11], *p; strcpy(p=a+1,&st[4]);B.char a[11]; strcpy(++a, s;C.char a[11]; strcpy(a, s;D.char a[], *p; strcpy(p=&a[1],st+2); 查看答案
题型:填空题 Which of the following would be the best approach when trying to take a crying toddler's temperatureA.Ignore the crying and screaming.B.Encourage the mother to hold the child.C.Talk to the mother first and then to the toddler.D.Bring extra help so it can be done quickly. 查看答案
题型:填空题 设有关系模式W(C,P,S,G,T,R),其中各属性的含义是:C为课程,P为教师,S为学生,G为成绩,T为时间,R为教室,根据定义有如下的函数依赖集: F={C→G,(S,C)→G,(T,R)→C,(T,P)→R,(T,S)→R} W的规范程度最高达到 (10) 。若将关系模式W分解为3个关系模式W1(C,P),W2(S, C,G),W3(S,T,R,C),则W1的规范化程度最高可达到 (11) ,W2的规范化程度最高可达到 (12) ,W3的规范化程度最高可到达 (13) 。 查看答案