— Tom to see the movie?
—No, he didn't.
A. Did; go
B. Did; went
C. Do; go
D. Was; went
答案:A
解方程:
(1)x2-6x-16=0
(2)x2+4x-1=0.
颈椎的椎体较小,横突根部有(),内有椎动脉、椎静脉通过。