According to the passage, the death rate of colorectal in the United States and Europe is
A. 40%
B. 45%
C. 50%
D. 55%
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A．It can help her keep slim.B．It can help her gain admiration from others.C．It is the
A. It can help her keep slim.
B. It can help her gain admiration from others.
C. It is the most popular exercise.
D. It is her favorite exercise.
Which of the following is NOT the effect of Aspirin？
A. It can prevent the risk of heart attacks and strokes.
B. It can drive away occasional aches and pains.
C. It can prevent insomnia.
D. It can induce stomach discomfort.
What can be inferred about the issue of childcare？
A. It's more reasonable to put children in a daycare center.
B. There's a tendency for more and more mothers to go to work.
C. Mothers should sacrifice their work to look after their children at home.
D. A lot of women wants to become more professional babysitters.
因争用资源产生死锁的必要条件是互斥、循环等待、不可抢占和(26)；“银行家算法”是一种(27)技术。
(54)
A. 申请与释放
B. 释放与占有
C. 释放与阻塞
D. 占有且申请
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