题型：问答题 简答题 完形填空。 The eyes are one of the most expressive instruments of body language. Keith, seventeen, from Montclair New Jersey, learned the hard way about one 1 the eyes can make. "I had a teacher who graded heavily on classroom discussion," Keith says. "He seemed to have a strong ability to know just when I didn't have the 2 .I couldn't figure out how he could be so sharp. Then it dawned on (为……所明白) me. 3 I didn't know theanswer, I would avoid looking at him. When I did know what to say, I always 4 straight back at him. From that moment on, I taught myself to look him in the eye, 5 I knew the work or not. That trick has saved me alot of trouble." Many people,including some policemen,believe eye contact is a good test of honesty. If someone can't look at you directly in the eye,then he or she is not playing 6 , they insist. After many experiments, however, a number of experts have found out that good liars can make false eye contact. Eye contact, though not a(n) 7 sign of honesty, is a clear way to show interest in another person. Whena person looks at you and continues to do so,you know his 8 is placed on you. When he turns his head away,his mind is probably elsewhere. 9 there are exceptions. A shy person may have trouble making and keeping eye contact, no matter how interested he is in the other person. And certain 10 , such as the British and Germans, are much less oriented (适应) to eyeball to eyeball contact than, say, the French and Arabs. ( )1. A. letter ( )2. A. question ( )3. A. Whatever ( )4. A. watched ( )5. A. when ( )6. A. honestly ( )7. A. real ( )8. A. attention ( )9. A. And ( )10. A. nationalities B. notice B. problem B. Whenever B. glanced B. whether B. quickly B. exact B. spirit B. Or B. cities C. message C. excuse C. However C. saw C. if C. correctly C. wonderful C. strength C. But C. countries D. news D. answer D. Wherever D. stared D. as D. really D. sure D. energy D. So D. languages 查看答案
题型：问答题 简答题 利用相邻双臂桥检测的应变式传感器，为使其灵敏度高、非线性误差小（）A.两个桥臂都应当用大电阻值工作应变片B.两个桥臂都应当用两个工作应变片串联C.两个桥臂应当分别用应变量变化相反的工作应变片D.两个桥臂应当分别用应变量变化相同的工作应变片 查看答案