Contrary to the opinion of the public, the chairman decided to appoint _______ he thought was equal to the job.

A．who

B．whomever

C．whom

D．whoever

关于水的密度，下列说法中正确的是 [ ]

A．1m³的水质量是100kg

B．1m³的水质量是1kg

C．1m³的水质量是1×10³kg

D．1m³的水的质量是10³kg/m³