<blockquote id="pnesc"><strike id="pnesc"><thead id="pnesc"></thead></strike></blockquote><ul id="pnesc"><tt id="pnesc"></tt></ul>

單項(xiàng)選擇題

A.0
B.2
C.4
D.6

你可能感興趣的試題

A.1024
B.1000
C.10000
D.1000000

A.0
B.W^k_N
C.1
D.W^-k_N