从脊椎动物来讲，泥盆纪是（）的时代；石炭一二叠纪（）的时代；中生代是（）时代；新生代

．汽车从A地开往B地，如果在原计划时间的前一半时间每小时驶40千米，而后一半时间由每小时行驶50千米，可按时到达．但汽车以每小时40千米的速度行至离AB中点还差40千米时发生故障，停车半小时后，又以每小时55千米的速度前进，结果仍按时到达B地．求AB两地的距离及原计划行驶的时间．

小儿听觉发育完善的年龄是（）

A.3岁

B.4岁

C.5岁

D.6岁

E.7岁

有关纵隔淋巴结，错误的是（）

A.正常时MR图像看不到淋巴结。 

B.淋巴结在原MR序列上易识别。 

C.淋巴结的信号强度和肌肉的信号强度相似。 

D.MR检查可以区分纵隔淋巴结核血管结构。 

E.以上均错。

阅读理解。

     Modern inventions have speeded up people's lives amazingly. Motor-cars cover a hundred

miles in little more than an hour, aircraft cross the world a day, while computers operate at

lightning speed. Indeed, this love of speed seems never-ending. Every year motor-cars are

produced which go even faster and each new computer boasts (吹嘘) of saving precious

seconds in handling tasks.

     All this saves time, but at a price. When we lose or gain half a day in speeding across the

world in an airplane, our bodies tell us so. We get the uncomfortable feeling known as jet-lag;

our bodies feel that they have been left behind in another time zone. Again, spending too long at

computers results in painful wrists and fingers. Mobile phones also have their danger, according

to some scientists; too much use may transmit harmful radiation into our brains, a consequence

we do not like to think about.

     However, what do we do with the time we have saved? Certainly not relax, or so it seems.

We are so accustomed to constant activity that we find it difficult to sit and do nothing, or even

just one thing at a time. Perhaps the days are long gone when we might listen quietly to a story

on the radio, letting imaginations take us into another world.

     There was a time when some people's lives were devoted simply to the cultivation of the land

or the care of cattle. No multi-tasking there; their lives went on at a much gentler pace, and in a

familiar pattern. There is much that we might envy about a way of life like this. Yet before we

do so, we must think of the hard tasks our ancestors faced; they farmed with bare hands, often

lived close to hunger, and had to fashion tools from wood and stone. Modem machinery has

freed people from that primitive existence.

1. The new products become more and more time-saving because ______.

A. time is limited

B. the manufacturers boast a lot

C. the prices are increasingly high

D. our love on speed seems never-ending

2. What does "the days" in Paragraph 3 refer to?

A. Imaginary life.

B. Times of inventions.

C. Simple life in the past.

D. Time for constant activity.

3. What is the author's attitude towards the modern technology?

A. Critical.

B. Objective.

C. Optimistic.

D. Negative.

4. What does the passage mainly discuss?

A. The present and past times.

B. Machinery and human beings.

C. Imaginations and inventions.

D. Modern technology and its influence.

治疗深部真菌感染的首选药物是（）

A.氟康唑

B.酮康唑

C.伊曲康唑

D.特比萘芬

E.二性霉素B