常温下，某气体能溶于水，密度比空气大，收集该气体可采用的方法是 [ ] A．向上

泥巴公园平均每天有602个人来游玩，一个星期的客流量大约是多少？

The middle school Foreign Language Program begins with a program at 5th level. All students take twelve weeks each of French, German and Spanish. Students continue with the language of their choice at 6th, 7th and 8th levels to complete the two semesters of high school work. 

Foreign Language classes are 23 minutes long and meet four times per week. The classes actively involve the students in listening exercises, vocabulary building, reading, writing, grammar and the development of oral proficiency  in specific topic of conversation.

The program is also designed to give students cultural insight into the beliefs and behaviors of the people and cultures represented by each language. Art, history, music, dance, food and the customs of each society are examined through filmstrips , games, cultural event projects and activities. The high school student exchange programs are involved with the middle school to allow personal contact with students from other countries where the languages are spoken.

Each year the advancements in technology help to bring the students even closer to the people of the world they are studying. Computer programs are used to practise and increase vocabulary and various language skills. The resource programs provide facts and figures instantly to supplement their knowledge of history and geography. The Internet offers opportunities to tap information on a number of topics in English and in other foreign languages. The faculty makes every effort to be aware of new technology and to make it accessible to the students whenever possible.

The middle school program hopes to help each student to do the study of foreign language throughout their life with education, travel and a continued awareness of the world and its peoples.

1. The first paragraph tells us that ________.

A. there are about 5 levels in language program

B. students have to learn French, German and Spanish for 12 months in all at first

C. high school students will be at the 6 levels in the language at least

D. you can choose three languages at three levels

2. Which of the following statements is NOT true according to the passage?

A. Students have more than 90 minutes of foreign language learning each week.

B. Students are trained in four-skill language learning.

C. Students will learn about foreign culture and customs.

D. Learning foreign languages throughout one’s life is the aim of the program.

3. The purpose of the passage is to introduce _________.

A. a foreign language program

B. the foreign language classes

C. what students will learn through the program

D. how the technology has an effect on the language learning

4. Which of the following does not belong to the program?

A. Kinds of foreign languages.            B. Classes activities.

C. Students exchange program.           D. Technology development.

此患儿最可能的诊断为

A．营养性缺铁性贫血

B．营养性混合性贫血

C．营养性巨幼细胞贫血

D．珠蛋白生成障碍性贫血(地中海贫血)

E．再生障碍性贫血

下述烟煤中，挥发分含量最小的是（）

A．长焰煤；

B．气煤；

C．贫煤；

D．弱黏煤

男性，30岁，近2周前牙咀嚼疼痛，且牙龈肿胀有脓液流出，2年前该牙外伤行固定义齿修复，未经根管治疗。检查：11近中邻面探及深龋洞，叩痛（±），唇侧牙龈见一瘘管，有脓液溢出，X线检查患牙根管内未见阻射充填物，根尖透射阴影，边界不清楚。

此患牙的处理为（）

A.根管治疗

B.切除瘘管

C.调

D.拔除患牙

E.观察