盈缩之期，（）。（曹操《龟虽寿》）
参考答案：不但在天
—Our school in 1886.
—Wa, it has a very long history.[ ]
A. built
B. was built
C. is built
D. has built
淀粉消化的部位主要在（）
A.口腔
B.胃
C.小肠
D.大肠
E.食管
