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搜题
【单选题】
蓄电池放电过程为 。A.
蓄电池与外界电源相联而将电能转化为化学能储存起来
B.
发电机向蓄电池充电
C.
蓄电池硫化
D.
蓄电池的化学能转化为电能而供电
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举一反三
【单选题】Questions 11 to 14 are based on the 4th passage
A.
She might have a hard time finding a job using French
B.
She might have a hard time finding a job using English
C.
She might have a hard time finding a job using Chinese
D.
She might have a hard time finding a job using German
【简答题】设X,Y均为已定义的类名,下列声明X类的对象x1正确的语句是( )。A.static X x1; B.public x x1 = new X(int 123); C.Y x1; D. X x1 = new X( );
【单选题】设X、Y均为已定义的类名,下列声明类X的对象xl的语句正确的是( )
A.
public X xl = new Y（ ）;
B.
X xl = X（ ）;
C.
X xl = new X（ ）;
D.
int X xl;
【单选题】Questions 11 to 14 are based on the 4th passage
A.
Tourism
B.
Hotel management
C.
Computer science
D.
French
【单选题】设X,Y均为已定义的类名,下列声明类X的对象 x1的语句正确的是( )。
A.
public X x1=new Y() ;
B.
int X x1 ;
C.
X x1=X() ;
D.
X x1=new X() ;
【单选题】设x,y均为已定义的类名,下列声明对象x1的语句正确的是()
A.
public x x1=new y( )
B.
x x1=x ( )
C.
x x1=new x( )
D.
int x x1;
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