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这两题我是真想不通 Ellen is on board a ship, from which she can see a lighthouse. The lighthouse transmits messages to ships by flashing three coloured lights in different orders. Ellen knows that the possible messages are as follows. Safe to dock: red, yellow, green Storm incoming: blue, yellow, red Do not dock: green, red, yellow Another ship nearby: yellow, blue, green The lighthouse flashes a message, but later Ellen only manages to remember two of the flashed colours, but not the order in which she saw them. One of the colours is red. This allows her to work out which message was conveyed. What was the message? A Safe to dock B Storm incoming C Do not dock D Another ship nearby 今年真题第32题 我估计是太dumb了 不能领会这题的意思。只记得一个red 咋选啊？ Trisha is trying to decode a secret message from her friend Brianna. She doesn’t know the code, so she has to try to guess at what it might be. The coded message reads: SFB HDIG KCUTDF FZXROOZ Trisha: “I think that the first word of the message might be ‘the’. But that would mean that the letter ‘E’ only appears once in the message, which would be unusual, because ‘E’ is a very common letter.” Which one of the following sentences shows that Trisha has made a mistake? A The first word of the original message might not actually be ‘the’. B Brianna’s message might only contain one letter ‘E’, even if that is unusual. C The code might contain numbers and other symbols, not just the letters of the alphabet. D Letters in the message might not always be represented by the same letters in the code. 今年真题38题 为什么不能选B? D的观点为什么更接近 |
