In order not to have Lily _____ on weight, Mom has to cook some food with little fat for her.

A．put

B．putting

C．to put

D．puts

发生全脊髓麻醉时，首先出现的症状是

A．呼吸停止，血压下降

B．双侧瞳孔散大

C．神志消失

D．面色苍白、脉搏细速

E．双侧瞳孔对光反射消失