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【单选题】
My father always gets up early. He’s never late ____ workA.
to
B.
for
C.
at
D.
on
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【单选题】以下程序段的输出结果是( )。 N=13: a=2 m=n mod 10 Select Case m Case is0: a=1 End select Print a
A.
-1
B.
0
C.
1
D.
2
【单选题】以下程序段的输出结果是（ ）。 int a=13,b=21,m=0;switch(a%3){case 0:m++;break;case 1:m++;switch(b%2){default:m++;case 0:m++;break;}}printf("%d",m);
A.
1
B.
2
C.
3
D.
4
【单选题】Soot blowers should be used in proper sequence so that____.
A.
excess stresses will not be set up in the boiler
B.
the decks will not be covered with soot
C.
the soot will be swept toward the uptakes(上升烟道)
D.
there will not be a loss of steam pressure
【单选题】Soot blowers should be used in proper sequence so that（）
A.
excess stresses will not be set up in the boiler
B.
the decks will not be covered with soot
C.
the soot will be swept toward the uptakes
D.
there will not be a loss of steam pressure
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