有关系式：有机物，若该有机物X与析出的银的物质的量之比为1∶4，则该有机物X可能是

A．CH₃Cl

B．CH₃CH₂Br

C．CH₃CHBrCH₃

D．CH₃CH₂CH₂Cl

In admiralty sailing directions, stripes is the word used to indicate（）marking.

A.horizontal

B.vertical

C.diagonal

D.vertical or diagonal