健康人体的阴阳关系是（）
A.阴阳对立制约
B.阴阳互根互用
C.阴阳相互转化
D.阴平阳秘
E.阴阳消长平衡
参考答案：D
1.31，1.33，1.35，______，______．
Do you know ______ he will be back?
I'm not sure. But ______ he comes back, I'll call you. [ ]
A. that; if
B. if; that
C. that; that
D. if; if
