手工锯条的安装有什么要求?
参考答案:
锯条的安装必须保证以下四点:
1.齿的立边在前;
2.锯条必须装到锯弓圆销的根部;
3.松紧应适宜;
4.锯条必须与锯弓平面平行。
-- _____ to a Disneyland Park?
-- No, never. But there will soon be one in Shanghai. It will be much more convenient for us to have fun there.
A.Have you gone
B.Have you been
C.Did you go
D.Will you go
消风散的组成包括
A.牛蒡子、蝉蜕
B.当归、川芎
C.通草、苍术
D.牡丹皮、胡麻
E.白术、知母