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多項選擇題

Which statements are true concerning the effect of the >> and >>> operators?()  

A.For non-negative values of the left operand, the >> and >>> operators will have the same effect.
B.The result of (-1 >> 1) is 0.
C.The result of (-1 >>> 1) is -1.
D.The value returned by >>> will never be negative as long as the value of the right operand is equal     to or greater than 1.
E.When using the >> operator, the leftmost bit of the bit representation of the resulting value will    always be the same bit value as the leftmost bit of the bit representation of the left operand.

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