最低肺泡有效浓度（MAC）是在一个大气压下疼痛刺激时，下列哪项病人（或动物）不出现体
题型：单项选择题
问题：
最低肺泡有效浓度（MAC）是在一个大气压下疼痛刺激时，下列哪项病人（或动物）不出现体动或逃避反应时的肺泡中某吸入全麻药的浓度（）
A.60%
B.50%
C.40%
D.20%
E.10%
题型：单项选择题
Do you know Henry Ford? He was the first person to build cars which were cheap，strong an
d fast．He was able to sell millions of models because he could produce them in large numbers at a time；that is，he made a great many cars of exactly the same kind．Ford’s father hoped that his son would become a farmer，but the young man did not like the idea and he went to Detroit where he worked as a mechanic（机械师）．By the age of 29，in 1892，he had built his first car．However，the car made in this way，the famous “Model T” did not appear until 1908—five years after Ford had started his great motor car factory．This car showed to be well-known that it remained unchanged for twenty years．Since Ford’s time，this way of producing cars in large numbers has become common in industry and has reduced the price of many goods which would otherwise be very expensive．
小题1:Henry Ford was the man to built _____ cars．
A cheap and strong B. cheap and long
C. fast and expensive D. strong and slow
小题2:Ford was able to sell millions of cars，because_____．
A．he made many great cars
B．his cars are many
C．he made lots of cars of the same kind
D．both A and B小题3:The “Model T” was very famous_____．
A．before 1908
B．between 1982 and 1908
C．before 1892
D．after 1908小题4: Ford built his own car factory________.
A．n 1903
B．in 1908
C．in 1913
D．in 1897
，乙的速度增加