【名词&注释】
柏拉图(plato)、政治家(politician)、《理想国》、迷走神经(vagus nerve)、非条件反射(unconditioned reflex)、左肺动脉(left pulmonary artery)
[单选题]动脉韧带位于( )
A. 主动脉和肺动脉的起始处
B. 左肺动脉(left pulmonary artery)起始部和主动脉弓下缘之间
C. 右肺动脉起始部和上腔静脉之间
D. 胸主动脉起始部和主动脉弓下缘之间
E. 主动脉升部和上腔静脉之间
查看答案&解析
举一反三：
[单选题]下列关于消化期胃液头期分泌机制的叙述，不正确的是
A. 食物可以通过条件反射引起胃酸分泌
B. 食物可以通过非条件反射(unconditioned reflex)引起胃酸分泌
C. 口腔咀嚼动作可以引起胃酸分泌
D. 迷走神经兴奋可直接引起胃酸分泌
E. 迷走神经兴奋可引发胃泌素分泌，间接引起胃酸分泌
[单选题]Passage FiveIn America, every student in his or her second year of high school is required to take a class in driver's education.
A. The course is divided up into two parts: class time for learning laws and regulations and driving time to practice driving. Each student is required to drive a total of six hours. The students are divided up into groups of four. The students and the instructor go out driving for two hour blocks of time. Thus, each student gets half an hour driving time per outing. Drivers Ed cars are unlike other cars in which they have two sets of brakes, one on the driver's side and one on the other side where the instructor sits. Thus, if the student driver should run into difficulties the instructor can take over.
B. After a student has passed the driver's education course and reached the appropriate age to drive (this age differs in every state but in most cases the person must be 16 years old), he must take his driver's test. The person must pass all three tests in order to be given a driver's license. If the person does well in his or her driver's education class, he or she will pass the test with flying colors and get a driver's license.
C. 51. In America, the driver's course mentioned above______.
D. is considered as part of the advanced education
E. is given to anyone wanting to get a driver's license
F. is carried on after students graduate from high school
G. is offered to all the students of Grade 2 in high school
[单选题]柏拉图在《理想国》中要驱除——。（ ）
A. 诗人
B. 政治家
C. 工匠
D. 军人
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