自我认知与生俱有。( )
参考答案:错
一天早晨的气温是-7℃,中午的气温比早晨上升了11℃,中午的气温是 [ ]
A.11℃
B.4℃
C.18℃
D.-11℃
He ______ his homework at seven yesterday evening.[ ]
A. did
B. does
C. was doing
D. had done