明代北京共有______座牌楼，目前保留下来的只有______的4座牌楼了。

五、单词填空

76. The year 2008___________  (目睹)great events, drawing the attention of the world, such as the Wenchuan Earthquake and the Beijing Olympic Games.

77. Hearing the gun, the enemies were horror-struck and ___________ (逃跑) in all directions.

78. The businessman ___________ (抛弃) his wife and went away with all their money.

79. The witness gave a very ___________ (生动的) description of the accident this morning.

80. You must be very careful to cut meat with this ___________ (锋利的) knife.

81. She often tells her classmate how hard life is at the ___________ (偏僻的) school.

82. In my opinion, these are___________ (政治) rather than social matters.

83. As a teacher I often _______(调整) my teaching methods to suit the needs of slower children.

84. Some old workers enjoy certain ___________ (特权), such as company cars and private health care in our company.

85. It is hoped that education should be ___________ (有关的) to children’s needs.

公共建筑的工作房间和工业建筑作业区域内的一般照明照度均匀度，不应小于（），而作业面邻近周围的照度均匀度不应小于（）。

A.0.5，0.7

B.0.7，0.5

C.0.6，0.7

D.0.6，0.5

越来越多的人成了互联网追新潮的盲从者．他们生怕自己惯用的虚拟身份在某个网络社区被别人抢先占据。这种场面似乎与1999年前后免费电子邮箱热潮有些相似，当时的统计显示，每个互联网用户平均注册了8.6个电子邮箱。可到2005年，这些邮箱只有18%还在使用，每个互联网自然人平均使用的电子邮箱仅为1.73个。同样，只有少数社区注册者将成为存活下来的网络自然人。每个人有限的精力和时间，决定了未来网络社区的天花板高度。
这段文字意在说明（）。

A．同时在多个网络社区注册是没有必要的

B．盲目追逐新潮会耗费大量的精力和时间

C．网络社区应吸取免费电子邮箱热潮的教训

D．对未来网络社区规模的估计不宜盲目乐观

释放和关闭表单的方法是( )。

A．Release

B．Delete

C．LostFocus

D．Destory

牙齿敏感症的主要检查方法是( )

A．冷刺激

B．热刺激

C．化学刺激

D．尖锐探针探查

E．以上均不正确