急性呼吸窘迫综合征病人有()
A.端坐体位
B.血性痰液
C.两者均有
D.两者均无
参考答案:B
骨的近关节端在原位转动,远端则做圆周运动()
A.屈、伸
B.内收、外展
C.环转
D.内旋
E.外旋
Ships equipped with Inmarsat SES send distress alerts both().
A.quick and good
B.convenient and certain
C.easily and simply
D.important and difficult