不属于干槽症临床表现的是（）。 A.阵发性疼痛 B.拔牙窝内常有腐败坏死组织 C.拔

下列化肥中，属于钾肥的是

A．硝酸钠

B．氯化钾

C．碳酸氢铵

D．磷酸二氢铵

有关基准收益率的说法正确的是( )。

A．是投资资金应当获得的平均盈利率水平
B．根据不同角度编制的现金流量表计算所需的基准收益率是相同的
C．是财务上是否可行的主要依据
D．是以静态的观点所确定的

下列分别属于楼阁式塔、密檐式塔、喇嘛教式塔、金刚宝座式塔，排序正确的是（）

A、山西应县木塔、河南登封嵩岳寺塔、北京妙应寺白塔、北京碧云寺金刚宝座式塔

B、西安大雁塔、西安小雁塔、北京北海公园白塔、西黄寺的清净化域塔

C、山西应县木塔、北京天宁寺塔、北京北海公园白塔、玉泉山的锥子塔

D、西安小雁塔、西安大雁塔、西黄寺的清净化域塔、玉泉山的锥子塔

(41)Orientation
Yellowstone is much more than hot ground and gushing steam. Located astride the Continental Divide, most of the park occupies a high plateau surrounded by mountains and drained by several rivers. Park boundaries enclose craggy peaks, alpine lakes, deep canyons, and vast forests. In 1872, Yellowstone became the world’s first national park, the result of great foresight on the part of many people about our eventual need for the solace and beauty of wild places.
(42) When to Go
More than half of the 3 million annum visitors come in July and August. In September and early October, the weather is good, the visitors few, and the wildlife abundant. In May and June, you can see newborn animals, but the weather may be cold, wet, and even snowy. Between about No-vember 1 and May 1 most park roads are closed to vehicles.
(43) Getting There
(44) How to Visit
The 142-mile (228.5-kilometer) Grand Loop Road forms a figure eight, with connecting spurs to the five entrances. On any visit, start with the geyser basins and Mammoth Hot Springs to see wildlife and thermal features (caution: both can be hazardous if approached too closely). On the second day, travel to the Grand Canyon of the Yellowstone, Hayden Valley, and Yellowstone Lake.
(45) Park Information
Park opens year-round.
[A] Road from North Entrance to Northeast Entrance open all year; most other park roads closed to cars November through April. Call headquarters for latest weather and road conditions.
[B] Facilities for Disabled Visitor centers, Madison and Fishing Bridge Campgrounds, most rest rooms, amphitheaters, numerous ranger-led activities, walks, and exhibits are wheelchair accessible. Free brochure available.
[C] On a longer stay, visit the Northern Range, or consider a boating or fishing trip on Yellowstone Lake; a backcountry excursion on foot or horse; or any of the numerous easy nature trails throughout the park.
[D] In early years, what made Yellowstone stand out was the extravaganza of geysers and hot springs. The wild landscape and the bison, elk, and bears were nice but, after all, America was still a pioneer country filled with scenic beauty and animals.
[E] By Plane
West Yellowstone Airport (WYS) at the West Entrance of Yellowstone. (This airport is open June through September.)
Cody Airport (COD) about 50 miles (81 kilometers) from the park.
[F] During the winter season, mid-December to mid-March, Yellowstone becomes a fantasy of steam and ice; facilities are limited but sufficient. Only the road between the North and Northeast Entrances stays open to cars, but snowmobiling is permitted on unplowed roads. Heated snow coaches offer tours and give cross-country skiers access to the 50 miles (80.5 kilometers ) of groomed trails.

标题要求言简意明的原因是（）。

A.短标题能突出新闻中的精华

B.短标题能体现出编辑的文字水平

C.短标题更方便广告编排

D.标题太长不易被读者感知和理解

E.短标题更容易抓住读者