宜单独放置的药品是
A.氯化钾溶液
B.氯化钙溶液
C.氯化钾注射液
D.氯化钠注射液
E.氯化钙注射液
参考答案:C
解析:氯化钾注射液误用可引起严重反应,一般宜单独放置。
_______ no buses , we have to walk home
A.There were
B.There being
C.It was
D.It being
电能表的分类如何规定?