When birds ____, the air under their wings helps push them up.A、mirrorB、sinkC、glideD、wet

题目
When birds ____, the air under their wings helps push them up.

A、mirror

B、sink

C、glide

D、wet

相似考题

1.Does he often _______ his mother ______ the room?A.help, cleansB.help,cleanC.helps, cleaningD.helps, clean

2.)16．A．makesB．letsC．improvesD．helps

3.Each person takes his plate, helps ____ and comes back to his place.A: himB: themC: hisD: himself

4.输入序列为ABC，可以变为CBA时，经过的栈操作为()。A.push，pop，push，pop，push，popB.push，push，push，pop，pop，popC.push，push，pop，pop，push，popD.push，pop，push，push，pop，pop

更多“When birds ____, the air under their wings helps push them up. ”相关问题

  • 第1题：

    输入序列为ABC，输出为CBA时，经过的栈操作为()。

    A.push,pop,push,pop,push,pop

    B.push,push,push,pop,pop,pop

    C.push,push,pop,pop,push,pop

    D.push,pop,push,push,pop,pop


    正确答案：B

  • 第2题：

    输入序列为ABC，可以变为CBA时，经过的栈操作为（）。

    A．push, pop, push, pop, push, pop

    B．push, push, push, pop, pop, pop

    C．push, push, pop, pop, push, pop

    D．push, pop, push, push, pop, pop


    push,push,push,pop,pop,pop

  • 第3题：

    输入序列为ABC，可以变为CBA 时，经过的栈操作为（）

    A．push,pop,push,pop,push,pop

    B．push,push,push,pop,pop,pop

    C．push,push,pop,pop,push,pop

    D．push,pop,push,push,pop,pop


    push,push,push,pop,pop,pop

  • 第4题：

    输入序列为ABC，可以变为CBA时。经过的栈操作为()。

    A.push，pop，push，pop，push，pop
    B.push，push，push，pop，pop，pop
    C.push，push，pop，pop，push，pop
    D.push，pop，push，push，pop，pop

    答案：B
    解析：
    栈的特点是后进先出，可以实现序列的倒置，具体操作就是push，push，push，pop，pop，pop。

  • 第5题：

    输入序列为ABC，可以变为CBA时，经过的栈操作为（）。

    A．push，push，push，pop，pop，pop

    B．push，pop，push，pop，push，pop

    C．push，push，pop，pop，push，pop

    D．push，pop，push，push，pop，pop


    push,push,push,pop,pop,pop

  • 第6题：

    3、输入序列为ABC，可以变成CBA时，经过的栈操作为

    A．push,pop,push,pop,push,pop

    B．push,push,push,pop,pop,pop

    C．push,push,pop,pop,push,pop

    D．push,pop,push,push,pop,pop


    push,push,push,pop,pop,pop

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