有关肾素-血管紧张素系统的正确叙述是

A．肾素是一种酶

B．血管紧张素Ⅰ是一种十肽

C．血管紧张素Ⅰ能促进钠潴留

D．血管紧张素Ⅱ能促进钠潴留

E．血管紧张素Ⅰ能促进钠排泄

—When _____ the Capital Museum _____?

—In 2005. It's been one of the symbols of Beijing from then on.[ ]

A. is; built

B. has; been built

C. will; be built

D. was; built