五位作家依次坐成一排为同学们签名售书，已知每位同学都恰好找座_爱下问搜题

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问题单项选择题

五位作家依次坐成一排为同学们签名售书，已知每位同学都恰好找座位相邻的三位作家签名．一共有22个同学同时找第二位和第四位签名，并且第三位一共签名38次，第一位比第五位多签名6次，那么第二位一共签名( )。

A．28次
B．54次
C．33次
D．42次

答案

参考答案：C

解析：每个同学可能选择前三位、中间三位或后三位作家签名，同时找第二位和第四位签名的同学只能选择找中间三位签名。设选择选择前三位、后三位的同学有x位、y位，得到x+22+y=38，x-y=6，x=11，y=5，则选择第二位作家签名的有11+22=33。

多项选择题

促肠胃运动药有（）

A.米索前列醇

B.溴已胺

C.甲氧氯普胺

D.多潘立酮

E.奥美拉唑

完形填空

A group of graduates got together to visit their old university professor.
The conversation soon turned into complaints about 26 in work and life. To offer his guests coffee, the 27 went to the kitchen and returned with a large pot of coffee and a variety of 28 — porcelain, plastic, glass, crystal, some 29 , some expensive, some delicate — telling them to help themselves to the 30 .
When all the students 31 a cup of coffee in hand, the professor said, "If you have 32 , all the nice-looking expensive cups have been taken up, 33 the plain and cheap ones. While it is 34 for you to want only the best for yourselves, that is the 35 of your problems and stress. "
"Be assured that the cup itself adds no 36 to the coffee. In most cases it is just more expensive and in some cases even 37 what we drink. "
"What all of you really want is coffee, 38 the cup, but you 39 went for the best cups … And then you began 40 each other's cups. "
"Now consider 41 : Life is the coffee; the jobs, money and position in society are the cups. They are just tools to hold and contain 42 , and the type of cup we have does not determine, nor 43 the quality of life we live. Sometimes, by concentrating only on the cup, we 44 to enjoy the coffee. Fully appreciate the coffee, not the cups! Don't let the cups 45 you ... enjoy the coffee instead. "

A．plain-looking

D．nice-looking

A．leaving behind	B．falling about
C．leaving about	D．falling behind

D．rather than

A．consciously