颅内肿瘤CT间接征象是()
A.肿瘤密度
B.瘤周水肿
C.肿瘤钙化
D.肿瘤水肿
E.肿瘤囊变
参考答案:B
Can you imagine what a girl will look like___________ she comes across a rat in her room?
A.now that
B.though
C.in case
D.if
弹簧测力计悬挂在升降机的顶板上,下端悬挂一质量为4kg的物体.当升降机在竖直方向运动时,弹簧测力计的示数始终是32N.如果从升降机的速度为6m/s时开始计时,则经过2s,升降机的位移可能是(g取10m/s²)()
A.4m
B.6m
C.16m
D.32m