特发性血小板减少性紫癜最重要的诊断依据是
A.皮肤有紫癜B.毛细血管性试验为阳性C.出血时间延长D.血小板计数减少E.骨髓巨核细胞增多或正常、有成熟障碍
参考答案:E
When I got to the airport, he____in front of the gate, waiting for me. [ ]
A. stood
B.stands
C.will stand
D.was standing
汽柴油燃油宝能否混用?