汽车制动过程中维修直线行驶或按照预定弯道行驶的能力为（）。 A.制动时汽车的方向稳定

当今世界，各国政府都在想方设法，采取各种改革措施来提高行政效率。古代世界中下列那些措施起到了提高政府行政效率的作用。

①　三省六部制　　②　罗马法　　 ③科举制　　 ④四百人会议

A．①②④

B．①②③

C．①③④

D．②③④

Reading Comprehension.

     The tomato is the world's most popular fruit. Unlike the cabbage, the tomato is a real fruit, not a vegetable.

More than 60 million tons of tomatoes are produced per year, 16 million tons more than the second most

popular fruit, the banana. Apples are the third most popular (36 million tons), then oranges (34 million tons)

and watermelons (22 million tons).

     Tomatoes were first cultivated in 700 by Aztecs and Incas. People returning from Mexico introduced the

tomato into Europe, where it was first mentioned in 1556.The French called it "the apple of love", the Germans

"the apple of paradise".

     Tomatoes are rich in vitamins A and C. Furthermore, new medical research suggests that the consumption

of tomatoes may prevent cancer. And it's low in cholesterol (胆固醇). An average tomato (148 gram, or 5 oz)

contains only 35 calories (卡路里).

     The scientific term for the common tomato is lycopersicon, which means "wolf peach". It is a cousin of

the eggplant, red pepper, ground cherry, potato. There are more than 10,000 varieties of tomatoes.

      Tomatoes are used in many food products, including, of course, tomato sauce (ketchup), pasta and pizza.

According to a Steel Packing Council survey of 1997, 68% of chefs use canned tomatoes for convenience,

quality and flavouring. It hasn't changed much since.

1. According to the passage, the ________ is a vegetable. (No more than one word)

2. In which country was the tomato most likely cultivated first? (No more than two words)

    ________________________________________________________________________

3. Please mention one of tomatoes' advantages. (No more than ten words)

    ________________________________________________________________________

4. Lycopersicon, which means "wolf peach", is ________. (No more than ten words)

图为人体血液循环示意图，数字表示人体内的某些器官或结构．请分析回答：

（1）心脏的四个腔中，左心房连接______静脉，肺动脉与______心室相连．同侧心房和心室之间的房室瓣具有防止血液______的作用．

（2）图中______是呼吸系统的主要器官，血液流经此处时，氧气透过肺泡壁和______壁进入血液，血液变为动脉血流回心脏．

（3）图中④示小肠，是营养物质吸收的主要场所，血液流经此处后，血液里的营养成分会______（填“增加”或“减少”）．

（4）血液经过全身各器官后，变为含氧较少的______血，由______ 流回心脏的______ 心房．

图片主格式是TIFF格式，为了web发布需要转换成JPG格式的副本所属的内容资源迁移类型是（）。

A.数字文件的日常更新

B.从数字主文档格式制作副本

C.不同应用间的转换

D.数字内容格式本身的改变

（）认为，如果让消费者和企业自行选择，他们不会足量购买某一组织的产品。

A、市场观念

B、推销观念

C、产品观念

D、生产观念