[单项选择]Passage One Americans this year will swallow 15, 000 tons of aspirin, one of the safest and most effective drugs invented by man. As the most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild, and it is cheap. Although aspirin was first sold by a German company in 1899, it has been around much longer than that. Hippocrates, in ancient Greece, understood the medical value of the leaves and tree bark which today are known to contain salicylates, the chemical in aspirin. During the 19th century there was a great deal of experimentation in Europe with this chemical, and it led to the introduction of aspirin. By 19l5, aspirin tablets(片剂) were available in the United States. For millions of people suffering from arthritis, aspirin is the only thing that works. A small quantity of aspirin (two five-grain tablets) relieves pain and inflammation. It also reduces fever by interfering with some of the body’s reactions. Aspiri
A. leaves and tree barks
B. the old name of aspirin
C. the name of a US company
D. a component of aspirin

[单项选择]Passage One Americans this year will swallow 15, 000 tons of aspirin, one of the safest and most effective drugs invented by man. As the most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild, and it is cheap. Although aspirin was first sold by a German company in 1899, it has been around much longer than that. Hippocrates, in ancient Greece, understood the medical value of the leaves and tree bark which today are known to contain salicylates, the chemical in aspirin. During the 19th century there was a great deal of experimentation in Europe with this chemical, and it led to the introduction of aspirin. By 19l5, aspirin tablets(片剂) were available in the United States. For millions of people suffering from arthritis, aspirin is the only thing that works. A small quantity of aspirin (two five-grain tablets) relieves pain and inflammation. It also reduces fever by interfering with some of the body’s reactions. Aspiri
A. the multiple functions of aspirin
B. how and why aspirin was invented
C. the history and the features of aspirin
D. how to take aspirin properly

[单项选择]Americans this year will swallow 15 000 tons of aspirin (阿斯匹林), one of the safest and (26) drags (27) by man, the most popular medicine in the world today. It is a pain (28) . Its bad (29) are relatively mild, (30) it is cheap.
For millions of people suffering from arthritis (关节炎), it is the only thing that works. Aspirin, (31) , is truly the 20th century wonder drug. It is also (32) suicide drug and is the leading (33) of poisoning among children. It has side effects that, (34) relatively mild, are largely unrecognized (35) users.
A small (36) of aspirin ( two five - grain tablets) relieves pain and inflammation (炎症), It also reduces fever by interfering (37) some of the body’ s reactions. Specially, aspirin seems to (38) the formation of the acids (39) in pain and the complex chemical reactions that (40) fever. The chemistry of these
A. in vain
B. in short
C. in shape
D. in shore