I like this jacket better than that one, but it costs almost three times _____.[ ]

A. as much

B. as many

C. so much

D. so many

交感神经的低级中枢位于脊髓的（）

A.颈1-胸3节

B.胸1-腰3节

C.腰1-骶2节

D.骶2-4节

E.仅存在于中胸节