按十二脉的流注次序，肝经向下流注的经脉是（）
A.膀胱经
B.胆经
C.三焦经
D.心经
E.肺经
参考答案：E
Security was such a major concern at the G8 Summit that no journalists could approach the meeting zone without ________ the special pass.[ ]
A. producing
B. issuing
C. commanding
D. involving
以下哪项不属于骨折固定的基本材料？（）
A.夹板
B.绷带
C.担架
D.衬垫
