脑动脉瘤的体积是决定SAH是否出血的危险因素,出血机会较少的是瘤体直径小于()
A.1mm
B.2mm
C.3mm
D.4mm
参考答案:C
The 15:30 train to Sheffield has been called off _______ situations beyond our control.
A.in terms of
B.due to
C.according to
D.in spite of
安全检查等级划分为()几个等级。
A.合格、不合格
B.优良、合格、不合格
C.优秀、良好、合格、不合格
D.优秀、良好、中、合格、不合格