Chinese President Hu Jintao had had _____ brief meeting with three astronauts who were going board _____

country's third manned spacecraft Shenzhou VII on Sept 25. 2008. [ ]

A. the; a

B. a; a

C. a; the

D. the ; the

门诊麻醉用咪达唑仑可预防气管插管时的眼压升高。