A small boy was walking (51) a street in London. His name was Tom.It was a cold winter day in 1900.(52) he could not have breakfast or lunch. He didn't have any money. His father died(死了)when he was very young. His mother was often ill,so she couldn’t (53) Tom and his brother,Mike. Both of them had to work to help their mother. He was small but his dream(梦想)was very (54) . His wish was to be a famous actor. He worked very hard to sing and dance (55 ) .
One day,a man came to him and asked," (56) in my film?""Certainly,"he answered.
And he did his (57)in it. Many people said,"We have never seen such an (58). film."Thirty years (59 ) ,this boy was among (60) famous people in the world. He made many interesting films,and lots of people admired him.
( )51.
A.along
B.for
C.with
D.to
第1题:
下列json表示的对象定义正确的是:
A.var str1={‘name’:‘ls’,’addr’:{‘city’:’bj’,’street’:’ca’}};
B.var str1={‘name’:‘ls’,’addr’:{‘city’:bj,’street’:’ca’}};
C.var str={‘study’:‘english’,’computer’:20};
D.var str={‘study’:english,’computer’:20};
第2题:
2、下面能正确显示水分子表达式的选项为()。
A.H<sub>2</sub>O
B.H<small>2</small>O
C.H<small><sup>2</sup></small>O
D.H<small><sub>2</sub></small>O
第3题:
13、关于关系的1NF,下列说法不正确的是________。
A.关系模式R(U)中关系的每个分量都是不可分的数据项
B.1NF要求关系中不能有复合属性、多值属性及其组合
C.Star (Name,Address (Street,City))是属于1NF的
D.Star(Name,Address,Street,City)是属于1NF的
第4题:
关于关系的1NF,下列说法不正确的是________。
A.关系模式R(U)中关系的每个分量都是不可分的数据项
B.Star (Name,Address (Street,City))是属于1NF的
C.1NF要求关系中不能有复合属性、多值属性及其组合
D.Star(Name,Address,Street,City)是属于1NF的
第5题:
关于关系的1NF,下列说法不正确的是________。
A.关系模式R(U)中关系的每个分量都是不可分的数据项
B.1NF要求关系中不能有复合属性、多值属性及其组合
C.Star (Name,Address (Street,City))是属于1NF的
D.Star(Name,Address,Street,City)是属于1NF的
第6题:
下面能正确显示水分子表达式的选项为()。
A.H<sub>2</sub>O
B.H<small>2</small>O
C.H<small><sup>2</sup></small>O
D.H<small><sub>2</sub></small>O