简述北美独立战争的原因、性质和意义。

The local government should __ the respon-sibility to provide those poor children with equal

opportunities to receive education.     [ ]

A. give                    

B. offer    

C. draw                    

D. undertake

女患者，分娩后突发手足抽搐，头项强直，牙关紧闭，面色苍白，产时失血较多，舌淡无苔，脉虚细。方用：

A．三甲复脉汤加味

B．天麻钩藤汤加味

C．羚角钩藤汤加味

D．镇肝熄风汤加味

E．撮风散加味

While you are working in a space，the fixed CO₂ system is accidentally activated．You should（）.

A.Secure the applicators to preserve the charge in the cylinders

B.Continue with your work as there is nothing you can do to stop the flow of CO₂

C.Retreat to fresh air and ventilate the compartment before returning

D.Make sure all doors and vents are secured

咨询者必须受过专业教育和训练。 ( )

（）的原则是权力与义务相结合的原则，励军荣军的原则。