宫颈正常防御功能不包括()
A.黏膜免疫
B.体液免疫
C.细胞免疫
D.非特异性免疫
E.生殖免疫
参考答案:E
—Your shirt is very nice.
—_________. [ ]
A. Yes, it is
B. No, it's not
C. Thank you
D. Here it is
胶带机的下托辊间距为()m。
A、2
B、3
C、4