多选题 The ______ of turtles and tortoises is ______; one giant tortoise in a Calcutta zoo is believed to have reached the age of 250 years.

A、 transience
B、 ubiquity
C、 longevity
D、 legendary
E、 dubious
F、 perplexing

【正确答案】 C、D

【答案解析】[解析] ● 分号说明前后同义重复。
● 第一空与age(年龄)同义重复。transience稍纵即逝，ubiquity无处不在，longevity寿命。答案选C。
● 第二空与250 years(250岁)同义重复。legendary传奇的，dubious值得怀疑的，perplexing令人困惑的。答案选D。