与血的生成关系最密切的脏腑是（）。
A.心肺
B.肝脾
C.脾胃
D.肺肾
E.肝肾
参考答案：C
根据 14 课课文内容排序。
( ) Here's Danny. Danny buys a big panda!
( )Everyone wants to go shopping.
( )Mrs. Li walks to the hotel with it.
( )Mrs. Li and Danny slowly to Wangfujing. Li Ming and Jenny walk quickly.
( )Danny shops slowly. Mrs. Li, Li Ming and Jenny sit down.
一炮弹在A处的东偏北60°的某处爆炸，在A处测到爆炸信号的时间比在B处早4秒，已知A在B的正东方、相距6千米， P为爆炸地点，（该信号的传播速度为每秒1千米）求A、P两地的距离．
