(-2,1] D. (-2,1)
b=1 (B) =2, b=-1 (C) =-2. b=1 (D) =-2, b=-1
-1-|||-C. dfrac (1)(2)-|||-D. -2
1/2 C.0 D. -1-|||-__
1:1(B.). 1:2(C.). 1:3(D.). 2:1(E.). 3:2断肢(指)再植吻合血管时的动、静脉适宜比例应是{A.}. 1:1{B.}. 1:2
1/2-|||-x C. -1/2-|||-D. -2
,则常数 A=()().-|||-A -1 ;-|||-B 0;-|||-C )1;-|||-D) 2.
1-|||-C. 2-|||-D. 3 !,1
_(1)=(p)_(2)-|||-bigcirc C. _(1)lt (p)_(2)-|||-D. _(1)gt (p)_(2)
(-2,1)-|||-C.(0,1) D. (-infty ,-2) x (1,+infty )