问题
单项选择题
It is a dangerous thing nowadays if you do not ______ others at arm's length, for they may hit you below the belt any time.
A．bake
B．keep
C．take
D．make
答案
参考答案：B
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It is a dangerous thing nowadays if you do not ______ others at arm's length, for they may hit you below the belt any time.
A．bake
B．keep
C．take
D．make
参考答案：B