直线有______个端点，射线有______个端点，线段有______个端点．
直线有0个端点，射线有1个端点，线段有2个端点．
故答案为：0，1，2．
用do, does, don't, doesn't, am, is, are或can填空。
1. ________ you like playing volleyball? No, I ________.
2. What ________ your favorite kind of movie?
3. I ________ not good at English, but I ________ speak a little English.
4. ________ she want to be a teacher? Yes, she ________ .
5. How ________ your uncle? He ________ fine, too.
6. What ________ you do? I ________ play basketball and volleyball
养精种玉汤中的药物有（）
A.白术
B.菟丝子
C.当归
D.熟地
E.白芍
