关于腰椎间盘脱出症的说法正确的是
A.以男性多见
B.有急慢性损伤史
C.腰4~5、腰5、骶1腰椎间盘脱出最为常见
D.往往在负重时突感疼痛
E.以女性多见
参考答案:A,B,C,D
_____ wonderful news report he wrote! All of us were satisfied with what he did.[ ]
A. What a
B. What
C. How
D. How a
升板结构柱的断面尺寸偏差不得超过±5mm,侧向弯曲不得超过()。
A.10mm
B.12mm
C.14mm
D.16mm