根据《水利水电工程标准施工招标资格预审文件》，属于初步审查标准的是( )。 A．申

赵某接到某市政府劳动教养管理委员会的劳动教养决定书后，立即提出复议申请。但该市劳动教养管理委员会在长达四个月的时间未对赵某的申请进行复议。
问：赵某是否可以向法院提起行政诉讼并说明理由。

Towards ____ evening, there was ____ heavy rain in the countryside. [ ]

A. the; a

B. an; /

C. /; a

D. the; /

用括号里所给单词的正确形式填空。

1. Those toys_____(make) of plastic.

2. There were a lot of great_____(invent) in the 20th century.

3. We should make up our mind to improve our listening, speaking, Reading and Writing _____(able).

4. There's but one China and Tai wan is _____(part) China.

5. _____ it was so cold ,he went out without an overcoat.

体积相同的铁块和铝块，从同一高处落下，则有[ ]

A．在高处铁块和铝块的势能相等，落到地面时的动能也相等

B．在高处铁块的势能大，落到地面时铝块的动能大

C．在高处铝块的势能大，落到地面时铁块的动能大

D．在高处铁块的势能大，落到地面时也是铁块的动能大

简述BTS3812基站信号在各板间的流向？