硬皮病的发生与那一项因素无关()
A.免疫系统的激活
B.血管的损伤
C.PDGF的释放
D.细菌的感染
E.成纤维细胞的活化
参考答案:D
E-shopping, when properly _____ ,can save us a lot of time and energy.
A.done
B.doing
C.to do
D.is done
中国高胆固醇血症的诊断标准是()
A.TC>5.72mmol/L(220mg/dl)
B.TC>5.20mol/L(200mg/dl)
C.TC>4.68mmol/L(180mg/dl)
D.TC>6.24mol/L(240mg/dl)
E.TC>7.02mol/L(270mg/dl)