问答题

Doctors won t operate on the patient______absolutely necessary.
A．when
B．if
C．unless
D．though

A.
A．when
B．if
C．unless
D．though

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He still has great talent, but he has lost______in himself.
A．loyalty
B．trust
C．faith
D．wish

A.
A．loyalty
B．trust
C．faith
D．wish

There is very______ knowledge about how to make the transition from childhood to adulthood less painful.
A．few
B．little
C．many
D．numerous

A.
A．few
B．little
C．many
D．numerous