【单选题】It was (him) who did all the work (on) the invention, but somebody (else) got (all the credit).
【简答题】Who is carrying the heaviest of all?
【单选题】下面哪一个C++函数和数学表达式 |x| 是等价的 ().
【简答题】The teacher said there were twelve _____ who had failed in the exam. A at all B in all C all in D all in all