问题
选择题
Tom had to call a taxi because the box was _____ to carry all the way home.[ ]
A. much too heavy
B. too much heavy
C. heavy too much
D. too heavy much
答案
答案:A
Tom had to call a taxi because the box was _____ to carry all the way home.[ ]
A. much too heavy
B. too much heavy
C. heavy too much
D. too heavy much
答案:A
设系统中有尺类资源m个,现有n个进程互斥使用。若每个进程对R资源的最大需求为w,那么当m、n、w取下表的值时,对于下表中的a~e五种情况, (17) 两种情况可能会发生死锁。对于这两种情况,若将 (18) ,则不会发生死锁。
表13-2 资源分配情况表 | |||||
a | b | c | d | e | |
m n W | 2 1 2 | 2 2 1 | 2 2 2 | 4 3 2 | 4 3 3 |
A.n加1或w加1
B.m加1或w减1
C.m减1或w加1
D.m减1或w减1