In the second paragraph, Nelson says that an active woman in her 20s ______
A. must be careful when taking 2,500 calories a day
B. should try to get 2,500 calories a day at least
C. must lose weight if taking in 2,500 calories a day
D. cannot do without a minimum 2,500 calories a day
在合同履行阶段应当相互协作，如发生不可抗力时，应当相互告知，并尽量减少损失。这体现了《中华人民共和国合同法》的( )原则。
A. 公平竞争
B. 平等合作
C. 诺守合同
D. 诚实信用
普通高血压患者（）
A. <120／90mmHg
B. <130／80mmHg
C. <140／90mmHg
D. <150mmHg
E. <160mmHg
According to the passage, it is easy to do all of the following EXCEPT ______
A. to go undetected when committing computer crimes
B. to commit computer crimes when one is intelligent enough
C. to be accused of committing computer crimes by the company
D. to get a good recommendation even when detected by occasion
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