问题
单项选择题
A little learning is a dangerous thing, for you might as well not know a thing______know it only imperfectly.
A．that
B．as
C．than
D．but
答案
参考答案：B
解析：might as well…as“与其说……倒不如……”。如本句：“对知识一知半解万万要不得，因为与其知之甚微倒不如干脆不知。”