设23-2x<0.53x-4,则x的取值集合是_______.
(﹣∞,1)
因为23-2x<0.53x-4,3-2x<4-3x,x<1,因此可知x的取值集合是(﹣∞,1)
26.—You look quite tired.
—I __________ the project here in order to meet the deadline.
A.have done
B.did
C.had done
D.have been doing
具有破血逐瘀、续筋接骨功效的药物是()
A.红花
B.乳香
C.三棱
D.土鳖虫
E.鸡血藤