在一张长18厘米,宽12厘米的长方形纸片上剪一个最大的正方形,剪去的纸片面积是□平方厘米。 □内应填[ ]
A.216
B.144
C.72
答案:C
经期吐血、衄血,量少,色黯红,平时手足心热,潮热咳嗽,其辨证为:
A.阴虚火旺
B.肝阳上亢
C.肺肾阴虚
D.肝肾阴虚
E.阴虚肝旺
Nothing can stop a _____ student _____ his mind to give up his studies. [ ]
A. promised; to change
B. promised; changing
C. promising; changing
D. promising; to change