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【简答题】
设f：A→B是从集合A到B的映射，A=B=（x，y）|x∈R，y∈R，f：（x，y）→（kx，y+b），若B中元素（6，2）在映射f下与A中的元素（3，1）对应，则k=______，b=______．
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【简答题】会计行政法规是指（ ）。
【单选题】The story does not say this, but from what we have read, we can tell that ______ .
A.
you get much hungrier in space than you do on the earth
B.
you can't have water to drink in a spaceship
C.
astronauts must learn many new and different things
D.
you can't eat anything in a spaceship
【简答题】预收账款不多的企业，可不设置“预收账款”账户，将预收的款项直接记人“应付账款” 科目的贷方。 （ ）
【简答题】We can measure the amount of water in a pot, but we can't measure its heat. We don't have an instrument for that.
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