( )一般都比较具体详细，是进行环境管理、处理环境纠纷的直接依据。在环境保护法律法

腹腔恶性肿瘤（）

A.腹水伴发热、腹痛

B.腹水伴腹块

C.腹水伴肝肿大

D.腹水伴水肿

E.腹水伴蜘蛛痣

阅读理解

                                                HOTEL INFORMATION

    Baymont Inn Ft.Lauderdale

    3800 W．Commercial, Ft. Lauderdale．FL 33309

     Lowest Prices 110% Guaranteed (保证)

     Room Information

     Rooms are equipped with Double, Queen , or King bed (s) , smoking or non-smoking based on

location and availability. Provided in each spacious guest room is a hair dryer, coffee maker, iron, ironing

board, 25'TV and guest voice mail．

       Hotel Amenities:Air Conditioned, Free Parking, 24 Hour Front Desk, Pool, Television with Cable,   Coffee Maker in Room, Hairdryers Available．

     Beach Plaza Hotel

     625 N．Fort Lauderdale Beach Blvd, Ft．Lauderdale, FL 33304

     Room Information

     The oceanfront accommodations at Beach Plaza Hotel are some of the most affordable on Fort

Lauderdale Beach．Each room features direct-dial telephone, cable television and daily maid service．

The very affordable efficiency studios even include full kitchens! All rooms surround the private poolside

garden courtyard．

    Hotel Amenities:Air Conditioned, Coffee Maker in Room, 24 Hour Front Desk, Parking, Hairdryers   Available, Pool, Television with Cable．

     Fort Lauderdale Plaza Hotel

    3711 N．Ocean Blvd, Ft．Lauderdale, FL 33308

Room Information

     Guest rooms feature TVs, in-room movies, Internet access, in-room safes, alarm clock radios,

hairdryers, refrigerators, microwaves, and balconies．

     Hotel Amenities:Parking,Heated Pool, Television with Cable, and Coffee Maker in Room．

1. Which hotel gives a promise?

A. Baymont Inn Ft . Lauderdale．      

B. Beach Plaza Hotel．

C. Baymont Inn Hotel．              

D. Fort Lauderdale Plaza Hotel．

2. In which hotel parking is the cheapest?

A. Baymont Inn Ft . Lauderdale．      

B. Beach Plaza Hotel．

C. Baymont Inn Hotel．              

D. Fort Lauderdale Plaza Hotel．

3. If you ______ , you will probably go to Beach Plaza Hotel．

A. enjoy seeing films without leaving your hotel room

B. are fond of swimming in heated water

C. want to eat food cooked by yourself in the hotel

D. are a cigarette smoker

4. Which of the following is NOT true to the ads?

A. All of the three hotels provide television with cable．

B. You can keep your money in the room safe in Fort Lauderdale Plaza Hotel．

C. In Beach Plaza Hotel a 24-hour maid is available．

D. While staying in Fort Lauderdale Plaza Hotel, you can surf the Internet．

氮化硅是一种重要的结构陶瓷材料，它是一种超硬物质，本身具有润滑性，并且耐磨损。一定条件下，氮气、氢气与四氯化硅反应可以制得氮化硅，化学反应方程式为：3SiCl₄+6H₂+2N₂ → Si₃N₄+12HCl

氮的氢化物肼（N₂H₄）是航天火箭发射常用的燃料，二氧化氮作氧化剂。

回答以下问题：

（1）氮原子的最外层电子排布式是_________________；氮元素有多种化合价，写出含2种价态氮的化合物的化学式_________________（举一例）。

（2）硅原子核外电子排布在______________种不同能量的电子亚层上，氮化硅属______________晶体。

（3）上述反应中，属于同一周期的元素符号有_________，用___________________________事实可以比较它们的非金属性强弱。

（4）肼(N₂H₄)分子可视为NH₃分子中的一个氢原子被－NH₂取代形成的另一种氮的氢化物。NH₃分子的空间构型是______________；与N₂H₄分子具有相同电子数的分子有多种，其中具有可燃性的物质是_________（举一例）。

（5）肼作火箭发射燃料，燃烧时发生的反应是：N₂O₄(l)＋2N₂H₄(l) → 3N₂(g)＋4H₂O(g)+1038.7kJ若该反应中有4mol N－H键断裂，则形成的气体有_____mol，其中转移电子数目_____。

（6）肼能与硫酸反应生成N₂H₆SO₄。该物质晶体类型与硫酸铵相同，则其溶液PH_______7（填>、＜或=），原因是____________________（用离子方程式表示）

人际关系的心理学实验研究，始于20世纪（）年代。

划入基本农田的范围是什么？