草坪草
参考答案：
易形成草坪，并能耐受定期修剪和人物使用的草本植物。
Personally I think it is the sales manager, rather than the sales girls, ____ to blame. [ ]
A. is
B. that is
C. are
D. who are
变风量空气温度的调节是靠送风温度的改变来实现的
