魏源在《海国图志》中系统阐述了哪一思想  [ ]

A、“师夷长技以制夷”

B、“师夷长技以自强”

C、“驱除鞑虏，恢复中华，创立合众政府”

D、兴民权，设议院，实行君主立宪

Tom’s farther, for ________life had once been very hard, got success later in his job.

A．which

B．whose

C．whom

D．who