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【单选题】
grep "hel?o" datafile.txt ,会匹配什么字符串A.
hello
B.
heloo
C.
heo
D.
hel?o
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反馈参考答案：
举一反三
【单选题】According to the time table, the next shuttle bus _____ at 7:00 in the morning.
A.
leaves
B.
is left
C.
has left
D.
will leave
【简答题】所 谓 数控机床可控制 联动 的坐 标轴 ,是指数控装置控制几个伺服 电动 机,同 时驱动 机床移 动 部件运 动 的 数目。
【简答题】所谓数控机床可控制联动的坐标轴,是指数控装置几个伺服电动机,同时驱动机床移动部件运动的 数目。
【单选题】According to teh tme table, the next shuttle bus _____ at 7:00 in the evening.
A.
leaves
B.
is left
C.
has left
D.
will leave
【简答题】( )是指CNC装置能够控制的以及能同时控制联动的轴数。数控机床一般控制轴数不少于( ),联动轴数越多,CNC装置的功能越强。
【单选题】运行以下程序,当用户输入12345000,则程序的输出结果是 void main() { int a,b; scanf("%2d%*2c%3d",&a,&b); printf("a=%d,b=%d\n",a,b); }
A.
a=12,b=345
B.
a=12,b=500
C.
a=12,b=5000
D.
程序运行出错
【单选题】According to the time table, the next shuttle bus _______ at 7:00 in the evening.
A.
leaves
B.
has left
C.
will leave
D.
is left
【单选题】According to the time-table, the train for Shanghai at 7 o’clock in the evening.
A.
leaves
B.
has left
C.
was left
D.
will leave
【单选题】According to the time table, the next shuttle bus ____ at 7: in the evening.
A.
leaves
B.
is left
C.
has left
D.
will leave
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