丝虫病时产生水肿的主要因素是()
A.血浆胶体渗透压降低
B.毛细血管通透性增加
C.毛细血管滤过压升高
D.肾小球滤过率降低
E.淋巴液回流受阻
参考答案:E
(2012·辽宁高考)Jack is a great talker. It's high time that he ________ something instead of just talking.
A.will do
B.has done
C.do
D.did
托里护心