There will be an exhibition of the _____ of dictionary in our city next week. We can learn more about the dictionary's history there.
A：excitement
B：advertisement
C：development
D：environment
____，泉涓涓而始流。____，感吾生之行休。（陶渊明《归去来兮辞》）
“春蚕到死丝方尽”是古人的误解．其实，蚕吐尽丝时并未死亡，只是发育成不吃不动的（ ）
— _____bag is this?
— It's Daming's. （ ）
集合M=x|-3<x≤5，N={x|x<-5或x>5}，则M∪N=（ ）
