战汗之后,如汗出热退脉缓,此为()
A.邪去正安
B.邪盛正衰
C.疾病恶化
D.邪热入里
E.正气虚弱
参考答案:A
— Oh. Mary's not here these days. Is she ill?
— _____. Her mother told me that she was in hospital. [ ]
A. I am afraid so
B. I hope not
C. I don't mind
D. I don't think so
根据下面一组等式:
S1=1;
S2=2+3=5;
S3=4+5+6=15;
S4=7+8+9+10=34;
S5=11+12+13+14+15=65;
S6=16+17+18+19+20+21=111;
S7=22+23+24+25+26+27+28=175;
……
可得S1+S3+S5+…+S2n-1=________.