物体的形心就是物体的()。
A、几何中心
B、中心
C、重心
D、内心
参考答案:C
与喉关系最密切的脏腑是
A.心
B.肝
C.胃
D.脾
E.肺
____you are familiar with the author’s ideas, try reading all the sections as quickly as you possibly can.
A.Now that
B.Ever since
C.So that
D.As long as