装配时零件和组件必须正确安放在规定的位置上,如稍有偏移,可装入图样未规定的垫圈,衬套之类的零件,以调整其正确的位置。
参考答案:错
下列脑肿瘤,哪些易钙化()
A.颅咽管瘤
B.少支胶质瘤
C.脑膜瘤
D.松果体瘤
E.髓母细胞瘤
In front of ______ remained of my old house,I took some pictures,which called up my childhood.
A.where
B.which
C.what
D.the place