Everyone ___________ hard.[ ]
A. work
B. works
C. worked
D. working
答案：B
It was reported that the plane I was to have taken crashed soon after it took off. _______ the traffic jam,
I was five minutes late for the plane. [ ]
A. As a result of
B. Thanks to
C. Because of
D. on account of
兴奋中枢α2受体的降压药是（）
A.氢氯噻嗪
B.利血平
C.胍乙啶
D.可乐定
E.硝普钠
