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问题 单项选择题

系统中有3个并发进程共同竞争某一资源，每个进程需要4个该类资源。如果要使系统不发生死锁，则该类资源至少应有几个？

A．9

B．10

C．11

D．12

答案

参考答案：D

单项选择题

增值税根据规定的税率计算，目前进口设备适用税率为( )。

A．14%

B．16%

C．17%

D．18%
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填空题

The problem is my weight. I’m just 1.57 meters high, but51. ______
my weight is 75 kilos. Many students often make a fun 52. ______
of me. Some boys were unfriendly for me—they call 53. ______
me "meat ball". That makes me to feel unhappy. 54. ______
Although I’m a bit too fat, yet I feel very well. I 55. ______
enjoy my meal. I love eating meat very much. And I like 56. ______
sweet food, though. I often have sugar with tea, milk. In57. ______
the past two months I had put on 5 kilos. So I’m becoming58. ______
more and more worried this problem, but I don’t 59. ______
know to lose weight quickly. Could you help me, dear doctor. 60. ______
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