数轴上在原点左边且离开原点2个单位的点所表示的数是 。
- 2
解：∵该数在数轴上原点左边，
∴该数为负数，
又∵该数离开原点2个单位，
∴该数为-2．
He _____ all that happened to the poor girl and decided to _____ her a favor. [ ]
A. witnessed; ask
B. witnessed to; give
C. witnessed; do
D. witnessed to; find
身热，烦渴，自汗，神疲，肢倦，尿黄，舌红，苔黄燥，脉虚无力。治宜（）
A.白虎加人参汤
B.连梅汤
C.王氏清暑益气汤
D.生脉散
