单项选择题
The fuel tanks had a capacity of 140 liters.（）
A．function B．ability C．power D．volume
单项选择题 Our statistics show that we consume all that we are capable of producing.（）
单项选择题 It is no use debating the relative merits of this policy.（）
单项选择题 He talks tough but has a tender heart.（）
