[单项选择]Medicine Directions
Take two tablets with warm water, followed by one tablet every eight hours, as required. For maximum nighttime and early morning relief, take two tablets at bedtime. Do not exceed six tablets in twenty-four hours.
For children six to twelve years old, give half the adult dosage. For children under six years old consult your doctor.
Reduce dosage if nervousness, restlessness, or sleeplessness occurs.
The label on this medicine bottle clearly warns not to take more than ______.
A. twenty-four tablets a day
B. eight tablets a day
C. six tablets a day
D. three tablets a day

[单项选择]Medicine Directions
Take two tablets with warm water, followed by one tablet every eight hours, as required. For maximum nighttime and early morning relief, take two tablets at bedtime. Do not exceed six tablets in twenty-four hours.
For children six to twelve years old, give half the adult dosage. For children under six years old consult your doctor.
Reduce dosage if nervousness, restlessness, or sleeplessness occurs.
What should you do if your child is under six years old
A. You should let him take two tablets a day
B. You should reduce the dosage anyway.
C. You should find the directions on the bottle.
D. You should ask the doctor for advic

[单项选择]The label on this medicine bottle clearly warns not to take more than ______.
A. twenty-four tablets a day
B. eight tablets a day
C. six tablets a day
D. three tablets a day

[单项选择]SoBig. F was the more visible of the two recent waves of infection because it propagated itself by e-mail, meaning that victims noticed what was going on. SoBig. F was so effective that it caused substantial disruption even to those protected by anti-virus software. That was because so many copies of the virus spread (some 500,000 computers were infected) that many machines were overwhelmed by messages from their own anti-virus software. On top of that, one common counter-measure backfired, increasing traffic still further. Anti-virus software often bounces a warning back to the sender of an infected e-mail, saying that the e-mail in question cannot be delivered because it contains a virus. SoBig. F was able to spoof this system by "harvesting" e-mail addresses from the hard disks of infected computers. Some of these addresses were then sent infected e-mails that had been doctored to look as though they had come from other harvested addresses. The latter were thus sent warnings, even t
A. sending them an overpowering number of messages
B. harvesting the addresses stored in the computers
C. infecting the computers with an invisible virus
D. destroying the anti-virus software of the computers