makes nearly all the rich elements of human expression needed to establish a
第1题:
A.Compilation fails.
B.An exception is thrown at runtime.
C.The variable first is set to null.
D.The variable first is set to elements[0].
第2题:
A.Compilationfails.
B.Anexceptionisthrownatruntime.
C.Thevariablefirstissettonull.
D.Thevariablefirstissettoelements[0].
第3题:
第4题:
A.Compilationfails.
B.Anexceptionisthrownatruntime.
C.Thevariablefirstissettonull.
D.Thevariablefirstissettoelements[0].
第5题:
A.deaD.establish-network-authenticate-terminate
B.lcp-authenticate-terminate
C.deaD.establish-authenticate-network-terminate
D.deaD.lcp-establish-ncp
第6题:
for重复结构处理计数器控制循环的所有细节。for结构的一般格式如下: for(expression1, expression2, expression3) statement 其中expression1初始化循环控制变量,expression2是循环条件,expression3递增控制变量。