Let's go to the shop. I want to buy a new shirt.[ ]
A. silk
B. bicycle
C. clothes
答案:C
2,9/8,28/27,65/64,( )
A.126/125
B.82/81
C.66/65
D.112/111
关于ARDS病理生理改变,下列哪项是错误的
A.肺间质水肿
B.肺血管内微血栓形成
C.肺表面活性物质减少
D.肺内分流减少导致V/A比例失调