HLA抗原抗体反应引起()
A.非溶血性发热反应引起
B.超敏反应
C.溶血反应
D.输血后紫癜
E.感染
参考答案:A
Tom went off to the EXPO Garden with his friends, _____ an exciting day of discovering the unique (
独特的) culture of each nation.
A.expected
B.expecting
C.to expect
D.expects
900千克□9吨,□里应填[ ]
A.>
B.<
C.=