据《素问·至真要大论》的内容，下列不是正治法的是（）
A.寒者热之
B.虚者补之
C.甚者从之
D.客者除之
E.实则泻之
参考答案：C
等差数列{an}前n项和Sn，若S10=S20，则S30=______．
句型转换。
1. I like those red pants. (改成否定句)
2. That is a ticket. (改成复数句)
3. You may go to Beijing. (改成疑问句)
go to Beijing?
4. My car is white. (对画线部分提问)
is your car?
5. Tom is l.3 metres tall. (对画线部分提问)
is Tom?
