女,31岁,在左眶外上缘发现一包块,质软,余所见无明显异常。如图所示病灶应诊断为()
A.畸胎瘤
B.错构瘤
C.脂肪瘤
D.表皮样囊肿
E.淋巴管瘤
参考答案:C
通分和约分都没有改变分数的大小.______.(判断对错)
It happened to be very cold ____ the morning of our sports meet. [ ]
A. at
B. on
C. with
D. of