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【单选题】
It can be learned from the text that soon after the Second World WarA.
hardly anyone suspected that it was unwise to contaminate the water and air.
B.
people unanimously found it acceptable to damp industrial wastes into the sea.
C.
the government tried to deal with the pollution problem but in vain.
D.
nobody attached great significance to the remedy for public hazards.
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A.
A P_0 do
B.
float 1a0 _A
C.
b-a goto int
D.
_123 temp int
【简答题】电子邮件的传送是依靠( )协议进行的,其主要任务是负责服务器之间的邮件传送。
【单选题】下列数组定义错误的是:
A.
int a[3];
B.
int a[]={1,2,3};
C.
int a[];
D.
int a[3], b[4]={1, 2, 3, 4};
【简答题】三相电压的平衡情况用其()来衡量。