Students who pass the test will be  ______to the next grade, as has been announced.

A．possessed

B．promoted

C．proposed

D．allowed

神经阻滞的常用药物和方法不包括下列哪项（）。

A.局部麻醉药和糖皮质激素

B.神经破坏药，如乙醇和酚甘油

C.射频热凝和冷冻

D.外科手术切断和松解

E.机械压榨