长沙书法家欧阳曾在哪几位皇帝手下当差？
参考答案：
隋阳帝，唐高祖李渊，太宗李世民。
We forgot to bring chopsticks, so we must find something _____ eating our meal. At last we had to use
several branches _____ chopsticks. [ ]
A. for; as
B. for; to
C. as; for
D. as:as
弹力产生的原因是由于物体发生了______．弹簧测力计的原理是______．
