蜗牛每小时爬行0.045千米，4小时能爬多少千米？1B8r'K/M0e2w(I'`-i+N0S)X/i3S
算式：提示;\([1`,V1B8r'K/M0e2w(I'`-i+N0S)X/i3S
答：4小时能爬'q+`2s0F2Z:G6l+|;Q,z7~千米。1B8r'K/M0e2w(I'`-i+N0S)X/i3S