用山、石、花等将园林中一些不足或丑陋之处加以掩盖或处理，使之变成一种美景的方法叫( )。
A．框景
B．夹景
C．障景
D．抑景
参考答案：C
名句填空。
1．今者项庄拔剑舞，________________。
2．夫秦王有虎狼之心，杀人如不能举，__________________，天下皆叛之。
3．________________，大礼不辞小让。
（66） is a method of constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.This method includes following types of dependencies or precedence relationships: （67） , the initiation of the successor activity, depends upon the completion of the predecessor activity.（68） , the initiation of the successor activity, depends upon the initiation of the predecessor activity.
A．F-S
B． F-F
C． S-F
D．S-S
