“What place is it？” “Haven’t you found out we _____ back where we ______？”

A．were, had been

B．have been, are

C．are, were

D．are, had been

除另有规定外，普通药材的酊剂每100ml相当于原饮片( )

A．1g
B．2～5g
C．10g
D．20g
E．45g