The teacher's name is Henry Mason. His students call him ________.
A:Mr Mason
B:Mr Henry
C:Mr Samuel
D:Mrs Mason
读图,回答下列问题.
属于内蒙古牧区的优良畜种的是( )
形近字组词。
构____ 沟____
性____ 姓____
复数z满足z(1﹣i)=﹣1﹣i,则|z+1|=( )