【判断题】协助扩散是一种被动运输的方式,它不消耗能量,但要在载体蛋白的协助下完成。
【判断题】矛盾的统一性是指矛盾双方的相互排斥和相互斗争( )
【单选题】限制部分自由度就能满足工件加工要求,这种定位称为( )。
【单选题】下列句子使用的修辞手法,判断正确的一项是
A.
四年黑暗中的苦工,一月阳光下的享乐,这就是蝉的生活。(夸张)
B.
假使没有了头颅,却还能做服役和战争的机械,世上的情形就何等地醒目啊!(反语)
C.
比如说“神圣”,比如说“终极”,谁看得见“终极”?(设问)
D.
十九日,夜的下半夜,人衰弱到极点了。天将发白时,鲁迅先生就像他平日一样,工作完了,他休息了。(双关)
【单选题】What can be inferred from the latest survey?
A.
Hospital teaching across the country is similar.
B.
Children are better off without hospital teachers.
C.
Only one-fourth of the hospitals have full-time teachers.
D.
All hospitals surveyed offer special treatment to children.
【单选题】Vegetation in Canada has shifted northward because ______.
A.
there isn't enough water in southern Canada
B.
the temperature is stable in northern Canada
C.
there are much more fields in northern Canada
D.
the temperature is much lower in northern Canada
【单选题】---Where is your grandpa? ---He _________ Canada and __________ Toronto for a month.
A.
has been to, has been in
B.
has gone to, has been in
C.
has been in, has been to
D.
has gone to, has been to