某同学在探究“串联电路的电压特点”时，连成的 电路如图所示。开关闭合后，两只电压表的指针均在刻度盘的正中央。以下判断正确的是

A．通过R₁的电流小于通过R₂的电流

B．R₁两端的电压与R₂两端的电压相等  

C．R₁的阻值大于R₂的阻值  

D．R₁消耗的电功率小于R₂消耗的电功率

Doctors warned sun-starved tourists who received too much sunlight that they were at serious risk than others of contracting skin cancer.

A．with more serious

B．at seriously

C．at more serious

D．seriously with