A．Grind them to powder.B．Freeze or can them.C．Heat and cool them.D．Dry and put them in

A．To let them know another language.B．To enable them to succeed in business.C．To let t

People strike the animals in the eardrum to______.A．make them become deafB．make them feel

What was one feature of the Earth that contributed to the runaway freeze 750 million years

The boxing competition was to_____.A．train them to be professional boxersB．teach them to f

What does the discovery of deep－freeze bacteria mean to us, according to the passage？A．We

They couldn t afford to eat in a restaurant because none of them had______money on them.A．