It’s _______ thrill to have ______ ten-year research project completed with the desired result.

A．/ ; the

B．a; the

C．the; a

D．a; a

机动车前轮定位包括：（）

A.主销后倾

B.主销内倾

C.前轮外倾

D.前轮前速

E.转向角度