我国规定,麻疹免疫的起始年龄是()
A.8月龄
B.1岁
C.1.5岁
D.2岁
E.7岁
参考答案:A
Mr. Yang is a teacher of _____. He taught _____ math when I was young. [ ]
A. me; my
B. mine; me
C. mine; my
D. me; me
变电所中单台变压(低压为0.4kV)的容量不宜大于()kV·A。
A.2500
B.1250
C.1000
D.800