椎管内麻醉血压下降的主要原因是()
A.肌肉松弛
B.心交感神经节阻滞
C.交感神经阻滞
D.副交感神经阻滞
E.中枢交感神经介质释放减少
参考答案:C
After meeting the beautiful young girl, the young man lay on his bed, wide awake, with wonderful ideas ______ into his mind. [ ]
A. crossing
B. entering
C. crowding
D. reaching
行为人在实施不纯正不作为犯罪时,其罪过( )。
A.只能是故意
B.只能是过失
C.既可以是故意,也可以是过失
D.只能是间接故意