【单选题】The DiaoYu Island have been part of China’s territory since ancient times, __________as important fishing grounds of Taiwan.
【简答题】对于函数 (1)是否存在实数a,使得函数f(x)是奇函数,若存在求出a值,不存在说明理由; (2)判断函数f(x)的单调性,并证明
【简答题】求 a 的值,使得函数 f ( x )= 在 x =1 处连续
【简答题】Listen to the video clip and finish the following sentences.
【简答题】Listen to the video clip and match the people with their titles.
【单选题】Who would you rather ________ your place since you are in hospital?
【单选题】– How long _____ in this job? – Since 1990.
B.
have you been employed