问题 单项选择题

挠性转子在临界转速以下运转时,转子可看作()

A.挠性转子

B.刚性转子

C.弹性转子

答案

参考答案:B

阅读理解
阅读理解。
    Charlottesville is a good place to have fun. If you go, here are some tips.
Where to stay
     The Foxfield Hotel is great. It's relaxing and quiet. You can have breakfast
there.
     Sugar Hotel is also a good place. Waiters working in it are very kind and
warm.                                                                                           --Julie
Where to eat
1. Bodo's Bagels. You can't go to Charlottesville without (没有) a trip to Bodo's.   It's across from the City Hall. Charlottesville is one of my favorite places in the
world!                                                                                       --Mark
2. Bizou Restaurant is always busy for lunch. So get there early. --Jim
3. Duner is a very great place to eat in Charlottesville. C&O Restaurant, 
second. Gearhardt's Chocolate on Bridge Street is also great for a quick  
(快的) meal.                                                                              --Kate


What to do
     During my second visit to Charlottesville, the weather is nice. We take a
taxi to the mountains (山) and take lots of photos.                       --Johnny

1. Waiters in Sugar Hotel are very _______.
A. friendly
B. shy
C. clever
2. You need to get to _______ early to have lunch.
A. Duner          
B. Bizou Restaurant
C. Bodo's Bagels
3. _______ takes a taxi to the mountains.
A. Mark  
B. Julie   
C. Johnny
4. The writer (作者) hopes more people will _______ in Charlottesville.
A. eat dinner        
B. have fun
C. take photos
单项选择题