胶粘层（）.
A．压敏胶
B．月桂氮酮
C．聚苯乙烯
D．乙烯-醋酸乙烯共聚物
E．硝酸甘油＋硅油
参考答案：A
—Do you like your new diet?
—Yes, I do. ______ I don't eat them any more. [ ]
A. So
B. And
C. But
D. Because
腰椎前后位的中心线入射点是（）
A.胸骨剑突
B.脐上3cm
C.脐
D.脐下3cm
E.髂前上棘连线中点
