我国迄今发现最重的一件青铜器是下列哪一个？（）
A、大盂鼎
B、虢季子白盘
C、妇好三联甗
D、司母戊鼎
参考答案：D
Mr Brown had lain ____ the ground ____ four hours before they finally found him. [ ]
A. on; for
B. at; in
C. on; after
D. in; during
体细胞配合
