在大熊猫和大肠杆菌体内，最基本的化学元素和含量最多的化学元素分别是（） A.C和O

　　下面一段文字有重复啰嗦的地方，在不影响原意的情况下，必须删除的有哪四处？把序号填在下面的横线上。

　　西汉长沙王室墓①的位置②位于长沙市湘江西岸望城古坟墓的岳麓山下。它③由一座主墓和三座从葬坑构成西汉长沙王室墓④。主墓居中，三座从墓坑成“品”形自东而西分列⑤。专家认为该墓⑥虽经盗贼⑦盗掘，但破坏不十分严重，出土文物⑧种类非常⑨繁多，有十余类，总数超过⑩两千件，其中一大批属珍贵文物。

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由于全口义齿本身的固位特点，要求排牙必须达到平衡咬合，以下有关平衡牙合的要求不正确的是（）。

A.平衡牙合是全口义齿在正中牙合、非正中牙合运动时，上下相关的人工牙均同时接触的牙合关系

B.正中牙合平衡是指在正中牙合位时，上下颌人工牙牙合面有最大面积的、均匀的接触，而无咬合障碍

C.前伸牙合平衡，最少应有三点接触，即上下前牙及左右两侧最后磨牙的接触，后牙的接触点愈向近中愈好

D.侧牙合平衡是指下颌向一侧做咬合运动时，工作侧和非工作侧牙尖均有接触

E.以上均是

板块类踢脚线施工时，不得采用（）打底。

A.混合砂浆

B.石灰砂浆

C.水泥砂浆

D.砌筑砂浆

有以下函数定义： void fun(int n, double x) {……} 若以下选项中的变量都已正确定义并赋值，则对函数fun的正确调用语句是( )。

A．fun(int y,double ;

B．k=fun(10,12.5);

C．fun(x,;

D．void fun(n,;

Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.
These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels mat sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedies like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, chasing instead more distant locations at different times of the year. Many of the Catskills hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today’s visitors.
Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the office of Public Information.

The word "rugged" underlined in Paragraph 2 means ______.

A. barren
B. rough
C. tall
D. lush