手阳明大肠经的五输穴是()。
A.商阳二间三间阳溪手三里
B.商阳二间三间阳溪曲池
C.商阳二间三间阳溪合谷
D.商阳二间三间阳溪温溜
E.商阳二间三间阳溪上廉
参考答案:B
最小的自然数、最小的质数、最小的合数以及最小的奇数,它们的和是______.
The question is _____ that nobody can answer it. [ ]
A. very hard
B. too difficult
C. strange enough
D. so strange