患者女性，22岁，昏迷，病史不详，血压l00／60mmHg，瞳孔小如针尖，口中蒜样臭味，全身肌肉阵发性震颤，多汗，流涎，两肺满布湿啰音，血、尿常规正常，全血胆碱酯酶活力为40％。下列哪项应首先考虑()

A.糖尿病昏迷

B.尿毒症昏迷

C.肝性昏迷

D.有机磷杀虫药中毒

E.感染中毒性休克

         from the moon, our earth, with water          seven percent of its surface, appears as a “blue ball”.

A．Seeing…covered

B．Seen…covered

C．Seeing…covering

D．Seen…covering