多选题 Critics dismissed the engineer"s seemingly creative design as being ______, that is, underdeveloped and lacking in sophistication.

A、 defunct
B、 plain
C、 simplistic
D、 erroneous
E、 ambiguous
F、 inaccurate

【正确答案】 B、C

【答案解析】[解析] ●that is说明前后同义重复。
●空格与underdeveloped and lacking in sophistication(不完善且不精致)同义重复。
●defunct不存在的，plain简单的，simplistic简单的，erroneous错误的，ambiguous不确定的，inaccurate错误的。答案选BC。
●注：这里erroneous和inaccurate是干扰项，同表示“错误的”。