被英国学者李约瑟称誉为“中国科学史上的里程碑”的一部著作是[ ]
A.《金刚经》
B.《梦溪笔谈》
C.《本草纲目》
D.《天工开物》
答案:B
肝脏重量减轻最明显的肝炎是()
A.急性普通型肝炎
B.急性重型肝炎
C.亚急性重型肝炎
D.中度慢性肝炎
E.重度慢性肝炎
Our words are meaningless and cannot be distinguished from their opposites, as can be proved by an example. People think that they know the difference between the meanings of "bald" and "having hair." Suppose an average person twentyone years of age has N hairs on his or her head. We say that that person is not bald but has hair. But surely one hair less would make no difference, and a person with N-1 hairs on his or her head would be said to have hair. Suppose we kept on, with one hair less each time. The result would be the same. But what would be the difference between someone who had one hair and someone who had none We call them both bald. Nowhere can we make a distinction between "bald" and "having hair." Which of the following statements best counters the argument above
A.The word "bald" can be translated into other languages.
B.A word can have more than one meaning.
C.A word such as "cat" can be applied to several animals that differ in some respects.
D.Words can lack precision without being meaningless.
E.(E) People cannot think clearly without using words.