Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference in how long the misery lasts.
The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come.
The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses -- flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗) , which is, for most people, the best way to fight the flu, according to the ALA.
But if the flu does strike, quick action can help. Although the flu and common cold h
A. one doesn't need to take any medicine if he has a cold or the flu
B. aspirin should not be included in over-the-counter medicines for the flu
C. delayed treatment of the flu will harm the liver and central nervous system
D. over-the-counter drugs can be taken to ease the misery caused by a cold or the flu
The first man who cooked his food, instead of eating it raw, lived so long ago that we have no idea who he was or where he lived. We do know, however, that (1) thousands of years food was always eaten cold and (2) . Perhaps the cooked food was heated accidentally by a (3) fire or by the melted lava from an erupting (4) . When people first tasted food that had been cooked, they found it tasted better. However, (5) after this discover, cooked food must have remained a rarity (6) man learned how to make and light (7) .
Primitive men who lived in hot regions could depend on the heat of the sun (8) their food. For example, in the desert (9) of the southwestern. United States, the Indians cooked their food by (10) it on a flat (11) in the hot sun. They cooked piece of meat and thin cakes of com meal in this (12) . We surmise that the earliest kitchen (13) was stick (14) which a pie
A. incapable
B. unavoidable
C. impossible
D. unpopular
A.淋法 | B.润法 |
C.漂法 | D.泡法 |
E.淘洗法 |
One of the best current examples of what Horowitz is talking 1 is John Denver. His most 2 songs—“Sunshine on My Shoulders”, “Rocky Mountain High”, and “Country Road”— 3 the musical drive and power of 4 rock, while the lyrics celebrate the simple 5 of“the good old days”. It is all symbolized in my mind by the hugely successful art 6 that television has made 7 to the culture, the 30-second commercial: the tiny drama of the 8 housewife who finds happiness 9 choosing the right toothpaste. When before in human history has so much humanity 10 surrendered so much of its leisure to one toy, one mass diversion They had no 11 of comparison and assumed that this was a 12 of his class, just as a traveler stepping off the liner at a foreign 13 for luncheon sums up a nation’s character forever in the 14 bu
我来回答: