根据题意,得
2-x≥0x+1≠0,
解得x≤2且x≠-1.
故选C.
She is _____ new teacher.[ ]
A. I
B. she
C. her
痰厥若兼咳痰黄、便秘宜加()
A.大黄、芒硝
B.陈皮、半夏
C.火麻仁、郁李仁
D.黄芩、栀子、瓜蒌、黄连等
E.黄芩、栀子、竹茹、瓜蒌仁等