题目内容

My best friend ____ is a teacher, lives in Beijing.

A. who
B. which
C. when

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That is the apartment block ____ my cousin lives.

A. when
B. that
C. where

The concert hall, _____ opened last year, is very popular with locals.

A. which
B. where
C. whose

将文字打散的快捷键是什么?

A. crtl+b
B. crtl+c
C. crtl+v
D. crtl+m

多因素方差分析的目的是检验若干个控制因素的（）是否给观测变量带来显著影响。