It's absolutely unacceptable to sacrifice people's life and health________ the economic development

in any case.[ ]

A. in the hope of  

B. in exchange for

C. in face of 

D. in need of

当出现通货紧缩时，为了扩大货币供给，中央银行应采取的措施包括( )。

A．买入政府债券

B．出售政府债券

C．降低准备金率

D．降低贴现率

E．提高准备金率