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
A warning signal suddenly appeared on the screen of my computer, ______ the computer was being attacked by a certain virus.
A．indicated
B．indicating
C．to indicate
D．having indicated
有人说，计划就是控制，你怎样理解？
