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【单选题】
若区域 D 为 | x | ≤ 1,| y | ≤ 1, 则 ( )
A.
0
B.
1
C.
2
D.
3
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参考答案:
举一反三
【单选题】限制子宫向两侧运动的韧带是()
A.
子宫圆韧带
B.
子宫主韧带
C.
子宫阔韧带
D.
骨盆漏斗韧带
E.
骶子宫韧带
【单选题】The people of China are working very hard to make concerted efforts to invigorate the country.
A.
enjoyable
B.
persistent
C.
encouraged
D.
joint
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转数宜选:( )r/min。
A.
69;
B.
79;
C.
100;
D.
200。
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转速宜选:
A.
69r/min
B.
79r/min
C.
100r/min
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/rain,则主轴转速宜选(    )r/rain。
A.
69    
B.
79    
C.
100
D.
200
【单选题】package test;  class Target {  public String name = “hello”;  }  What can directly access and change the value of the variable name?()
A.
any class
B.
only the Target class
C.
any class in the test package
D.
any class that extends Target
【单选题】数控编程在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转数宜选()r/min。
A.
69
B.
79
C.
100
D.
200
【单选题】When Louise started working________.
A.
she got a little pay but worked and learned very hard
B.
she worked alone without any help
C.
she was forced to work long hours every day
D.
she was encouraged by the public
【单选题】From the school name______on the package, we guessed that it might belong to a student of our sc
A.
14. From the school name______on the package, we guessed that it might belong to a student of our school. A.to mark
B.
marking
C.
marked
D.
having been marked
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转速宜选(    )r/min。
A.
69    
B.
79    
C.
100    
D.
200
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