【判断题】小肠皱襞、绒毛和微绒毛均可扩大吸收面积。()
【单选题】Tom likes to go the movies ______ Mary prefers to go swimming.
【判断题】在切削过程中,刀具切削部分在高温时仍需保持其硬度,并能继续进行切削。这种具有高温硬度的性质称为红硬性。()
【单选题】—I called you last night, but there was no answer, —Oh, I'm sorry. I dinner at my friend's home. [ ]
【判断题】在切削过程中,刀具切削部分在高温时仍需保持其硬度,并能继续进行切削,这种具有高温硬度的性质成为红硬性。
【单选题】— I'm sorry. I _____ at you the other day. — Forget it. I was a bit out of control myself. [ ]
C.
shouldn't have shouted C. mustn't shout C. mustn't have shouted
【判断题】小肠皱襞、绒毛和微绒毛均可扩大吸收面积。
【单选题】— I'm sorry. I _____ at you the other day. — Forget it. I was a bit out of control myself. [ ]
B.
shouldn't have shouted