问题 单项选择题 A1型题

乙型脑炎的流行病学特点是()

A.蚊虫传播、无季节性

B.蚊虫传播、有季节性

C.飞沫传播、有季节性

D.飞沫传播、无季节性

E.垂直传播、无季节性

答案

参考答案:B

解析:人畜共患传染病,猪乙型脑炎流行病学:本病的发生与蚊虫的活动季节有明显的相关性,流行地区的吸血昆虫,特别是库蚊属和伊蚊属体内常能分离出病毒,是典型的蚊传传染病。约有90%的病例发生在7~9月,而在12月至次年4月几乎无病例发生。【考试科目】《兽医传染病学》

完形填空

请先阅读下面短文,掌握其大意,然后从各小题所给的A、B、C、D四个选项中选出可以填入相应空白处的最佳选项。

     I was so excited after I had found the holiday in the guidebook. It said, “Enjoy a week of sightseeing in one of Europe’s most beautiful cities  1  staying at one of its best hotels. ” Now I wasn’t so sure. I had waited fifteen minutes at reception (前台) when I  2  and now the shower in my room wasn’t working. I called hotel reception.

    “Hello. This is Room 308. There isn’t any in my bathroom. ” 

   “Are you sure?” 

   “Of course I’m sure!    “I’ll  4  our hotel engineer at once. ” 

    An hour later, the engineer came to look at the shower. He hit the pipes (管子) a few times and looked   5  . “Sorry, but I cannot fix it today. Maybe, tomorrow.” Then he   6  his hand. I couldn’t believe it! He wanted a tip (小费) for doing  7   ! I was very angry. But suddenly, I had a better idea.  8  , I gave the engineer a few coins. He hadn’t fixed my shower but he had taught me something about staying in his country. Two minutes later I was at the reception desk. I explained the problem to the receptionist (接待员) and he replied, “Sorry. This is a situation, but what can we do?” I knew exactly what to do. I gave the hotel manager a very large tip. Fifteen minutes later I  10 into Room 405. It was twice the size of Room 308, it had a wonderful view (景色) of the city, a comfortable bed and, most importantly, there was water in the bathroom.

1. A. since     B. while     C. after     D. before

2. A. arrived     B. passed     C. left     D. stopped

3. A. toothpaste     B. water     C. shampoo     D. soap

4. A. send     B. catch     C. trouble     D. bring

5. A. proud    B. worried     C. angry     D. excited

6. A. put up     B. cleaned up     C. took back     D. held out

7. A. nothing     B. anything     C. something     D. everything

8. A. Seriously     B. Especially     C. Quickly     D. Luckily

9. A. helpful     B. perfect     C. terrible     D. busy

10. A. broke     B. looked     C. rushed     D. moved

多项选择题