【单选题】Choose the best answer to complete each of the following sentences according to the information contained in the listening passage. In this monologue ( 独白 ) Alberto tells us that ________.
A.
he is interested in language research
B.
he is good at Chinese and German
C.
he has a degree in political science
D.
he wants to be a language teacher
【判断题】结构体指针作为函数参数,是将结构体的首地址传递给函数A. A:正确B. B:错误
【判断题】结构体指针作为函数参数,是将结构体的首地址传递给函数。
【简答题】若A是B成立的充分条件,D是C成立的必要条件,C是B成立的充要条件,则D是A成立的______(填“充分”、“必要”或“充要”)条件.
【判断题】结构体指针变量用于存放结构体变量的首地址,所以将指针作为函数参数传递时,其实就是传递结构体变量的首地址。
【简答题】已知a、b是非零向量,指出下列等式成立的条件: ①|a|+|b|=|a+b|成立的条件是______; ②|a|+|b|=|a-b|成立的条件是______; ③|a+b|=|a-b|成立的条件是______; ④|a|-|b|=|a-b|成立的条件是______.
【简答题】Listen to the recording again and fill in each of the blanks according to what you have heard. Alberto has started learning ____________ , ____________ , Portuguese and ____________ , and he would als...