果岭结缕草修剪常用的剪草机为（）剪草机。
A、滚刀式
B、旋刀式
C、割灌式
D、往复式
参考答案：A
我国珍稀的鱼类动物是（ ）
A．中华鲟
B．白鳍豚
C．扬子鳄
D．大马哈鱼
From the first novel Sister Carrie on, Dreiser set himself to project the American values for what he had found them to be: () to the core.
A. altruistic
B. political
C. religious
D. materialistic
