水平式自动喷水灭火系统边墙型喷头溅水盘与顶板的距离不应小于（）mm，且不宜大于（）mm。
参考答案：150；300
正方体是特殊的长方体．______．
The island is attractive in spring and autumn because of the pleasant weather in both seasons. [ ]
A. partly
B. merely
C. nearly
D. equally
