下列何种抗原是触发移植排斥反应的首要抗原()
A．HLA-A、B、C
B．HLA-DP
C．HLA-DQ
D．HLA-DR
E．HLA-D
参考答案：D
It is good that we have large national parks, _____ wildlife enjoys proper protection. [ ]
A. whose
B. which
C. where
D. what
