题目内容

比较任意两个数的大小，并输出最大值

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Cuk斩波电路与buck-boost斩波电路的输入输出的关系是相同的。但是Cuk斩波电路有一个明显的优点，就是它的输入电源电流和输出负载电流都是连续的，且脉动很小，有利于对输入、输出进行滤波。

A. 对
B. 错

How many children do most post-80s families have?--One. They _____two in the future, I guess.

A. will have
B. had
C. have
D. have had

If it is clear tomorrow, I ______ a bike to the underground station.

A. ride
B. have ridden
C. will ride
D. rode

Withthedevelopmentofscienceandtechnology,robotcooks____inourfamiliesinthenear future.

A. appear
B. appeared
C. were appearing
D. will appear