两幢楼之间相距18 米，每隔3 米种一棵广玉兰，一共种了几棵广玉兰？;Y;F4q(d-[7h9p*].U,N5|
算式：提示*Z-r*t.L5g/C1?2c1Q/V:y)@0q)p;Y;F4q(d-[7h9p*].U,N5|
答：一共种了5G-D2n9b0?2b,Y+s4@8g4b9t棵广玉兰。;Y;F4q(d-[7h9p*].U,N5|