窦性心律不齐

f(x) = x²-2x，则f(x+1)=               

弹性压力表的制造原理是依据（）。

A、牛顿第一定律

B、力平衡原理

C、牛顿第三定律

D、帕斯卡定律

Lately, the media and netizens              a girl named Guo Meimei for her action, which led to people losing confidence in charity.

A．had criticized

B．criticized

C．criticize

D．have been criticizing

第五期、第六期士官服现役的年限分别为多少？

单位银行卡账户的资金必须由其（）转账存入，该账户不得办理现金收付业务。

A.一般存款账户

B.基本存款账户

C.专用存款账户

D.银行结算账户