关于Ⅳ型超敏反应机制的叙述错误的是
A．致敏T细胞介导
B．巨噬细胞浸润
C．细胞变性坏死
D．IgG抗体参与
E．淋巴细胞浸润
参考答案：D
Most of his savings _____ in the Xin Hua Bank. [ ]
a. has been kept
b. is being kept
c. have kept
d. have been kept
房地产投资收益状况受其周边物业、城市基础设施与市政公用设施和环境变化的影响，则该房地产投资的特点属于( )。
A．适于进行长期投资
B．变现性差
C．易受政策影响
D．存在效益外溢和转移
