密闭容器内自由表面压强p0=9.8kPa，液面下水深2m处的绝对压强为（）kPa。
A.19.6
B.29.4
C.205.8
D.117.6
参考答案：B
-------Do you have enough to ________all your daily expenses?
--------Oh yes, enough and to spare.
A．cover
B．spend
C．fill
D．offer
40岁男性，股骨下端疼痛，膝关节活动轻微受限。查体：股骨下端偏外侧局限性隆起，压痛，皮温略高。x片：股骨外侧髁可见偏心性生长的骨吸收病灶，皮质向外膨隆，变薄，无骨膜反应。诊断为
A．骨纤维异样增殖症B．骨巨细胞瘤C．嗜酸性肉芽肿D．内生软骨瘤E．骨囊肿
--------Oh yes, enough and to spare.