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【单选题】
Of the following, which is most likely attributable to the effect of endorphins as described in the passage?A.
After an injection of novocaine, a patient has no feeling in the area where the injection was given.
B.
After taking ibuprofen, a person with a headache gets quick relief.
C.
After receiving a local anesthetic, an injured person reports relief in the anesthetized area.
D.
After being given aspirin, a child with a badly scraped elbow feels better.
E.
After acupuncture, a patient with chronic back pain reports that the pain is much less severe.
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【单选题】一个圆柱体沿管道内壁下滑。圆柱体直径d=100mm,长L=300mm,自重G=10N。管道直径D=101mm,倾角θ=45°,内壁涂有润滑油,如图1-5所示。测得圆柱体下滑速度为U=0.23m/s,求润滑油的动力粘性系数μ。( ) 图1-5
A.
0.36Pa·s
B.
0.140 Pa·s
C.
0.155 Pa·s
D.
0.163 Pa·s [单选题]
【单选题】润滑油充满在活塞和气缸的间隙中,气缸直径D=12 cm,间隙δ=0.4 mm,活塞长L=14 cm,如题1-7图所示,若对活塞施以8.6 N的力,活塞的运动速度U=1.0095m/s,求润滑油的动力粘度系数μ。( ) 图1-7
A.
0.065 Pa·s
B.
0.058 Pa·s
C.
0.123 Pa·s
D.
0.16 Pa·s [单选题]
【单选题】The passage suggests that by the late Colonial period the tendency to cultivate metropolitan cultural models was a cultural pattern that was ______.
A.
dying out as Puritan influence began to grow
B.
self-consciously and distinctively Southern
C.
more characteristic of the Southern colonies than of England
D.
spreading to Massachusetts and Connecticut
【简答题】一、汽车维护基础 画出零件磨损特性曲线,并描述三个阶段。
【单选题】角色的扮演法运用的基本要求,不正确的是
A.
参与人数一般 为 2 ～ 4 人
B.
教师对整个过程加以指导和控制
C.
教师应事先确定并描述角色
D.
创设的情景不必真实
【简答题】单词拼写。 1. You shouldn't p_____ at anyone with your chopsticks. 2. You have to cut it up and eat with a f_____. 3. You aren't supposed to s_____ your chopsticks into your food. 4. It's very rude to say...
【单选题】角色的扮演法运用的基本要求,不正确的是
A.
参与人数一般 2～4人
B.
教师对整个过程加以指导和控制
C.
教师应事先确定并描述角色
D.
创设的情境不必真实
E.
表演过程中学生要投入情感
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