--- Mum, why don’t you have the robot ________ housework for you?

--- Oh, it caught a virus, I should have it _________ at once.

A．done; repair

B．do; repaired

C．done; repaired

D．do; repair

关于血管紧张素转化酶叙述正确的是：

A．ACE有细胞型、血浆型和组织型3类

B．只能降解AngⅠ为AngⅡ

C．不能降解缓激肽、P物质与内啡肽

D．血中内源性AngⅠ与缓激肽主要在肺血管内皮细胞经ACE转化

E．ACE与激肽酶Ⅱ是两种不同的酶