The process of dividing members of the population into homogeneous subgroups before sampling is______.

单项选择题Which is the largest in size among the four countries below

单项选择题In writing, ______refers to series of words that begin with the same consonant or sound alike.

单项选择题Realism is a literary movement against______.

单项选择题Which of the following is a British writer

单项选择题The executive political power of New Zealand is exercised mainly by the______.