后颅窝手术中，切开枕骨大孔后缘一般限制在中线旁1.5cm内，主要是为避免损伤（） A

10名工人某天生产同一零件，生产的件数分别是15，17，14，10，15，17，17 ,16，14，12。设其平均数为a（件），中位数为b（件），众数为c（件），则有[ ]

A.a>b>c    

B.b>c>a    

C.c>a>b    

D.c>b>a

完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳选项。

After years of searching, a truth seeker was told to go to a cave, in which he would find a well. “Ask the well what is   36  , ” he was advised, “and the well reveal (告诉，揭露) it to you.” Having found the well, the seeker asked that most basic and important   37  . And from the depths came the answer: “Go to the village crossroad, and there you shall find what you are seeking.”

Full of   38   the man ran to the crossroad to   39   only three rather uninteresting shops. One shop was selling pieces of metal, another sold   40  , and thin wires were for sale in the third. Nothing and no one there seemed to   41   much to do with the revelation of truth.

Disappointed, the seeker returned to the well to demand an   42  , but he was told only: “You will   43   in the future.”

As years went by, the   44   of his experience at the well gradually   45   until one night, while he was walking, the sound of sitar (西塔琴) music   46   his attention. It was wonderful and it was   47   with great skill and inspiration.

Deeply  48  , the truth seeker felt drawn towards the   49  . He looked at the fingers dancing over the strings. And then suddenly he let out a cry of joyful   50  : the sitar was made out of wires and pieces of metal and wood just like   51   he had once seen in the three stores.

At last he understood the   52   of the well: we have already been given everything we need; our   53   is to assemble (聚集) and use them in the proper way. Nothing is   54   so long as we recognize only fragments (碎片). But as soon as the pieces are put together, something new appears, whose nature we could not have   55   by considering the fragments alone.

A. truth   B. hope   C. future D. music

A. fact    B. reason C. question     D. well

A. energy       B. hope   C. mystery      D. surprise

A. get     B. count  C. find    D. open

A. instruments       B. clothing     C. food   D. wood

A. connect      B. have   C. prepare      D. offer

A. explanation       B. advice C. excuse D. opportunity

A. succeed      B. discover     C. pay     D. understand

A. bitterness   B. failure C. memory     D. secret

A. doubled     B. forgot C. disappeared       D. recovered

A. paid    B. lost     C. split    D. caught

A. played       B. broadcast    C. enjoyed      D. conducted

A. annoyed     B. moved       C. confused    D. frightened

A. adviser       B. director      C. composer   D. player

A. admiration B. distinction  C. recognition D. imagination

A. those  B. that     C. it D. them

A. secret  B. message     C. theory D. benefit

A. target  B. difficulty    C. task    D. shortcoming

A. interesting  B. meaningful C. accessible   D. successful

A. foreseen(预见)  B. decided      C. judged       D. formed

．在倾角为θ的粗糙斜面上叠放着质量分别为m与2m的A、B两物体，刚好都处于静止状态，如图4－2－21所示．则下列说法正确的是(　　)

图4－2－21

A．A、B两物体受到的摩擦力之比为1∶2

B．因为A、B都处于静止状态，所以它们受到的摩擦力之比为1∶1

C．如果斜面的倾角θ改变，使正压力改变，则两物体所受摩擦力的比值也随之改变

D．因为A、B间、B与斜面间接触面的动摩擦因数的关系不知道，所以比值不能确定

离心式水泵一般的调节方式是（）调节，但其缺点是（）。

(一)
甲市某区经过勘探发现大片煤田，区委区政府决定在此建设一个大型的煤化矿区，但由于政府资金不足，便将部分小矿山向社会公开招标，王某经过竞争顺利中标，并经区煤矿管理部门的批准许可，在矿区开采煤矿。9月23日，区煤矿管理部门在对矿区进行执法检查中发现王某的开采范围超越了许可范围，遂即决定对其进行处罚。

如果煤矿管理部门的执法人员欲作出吊销王某的开采许可证并罚款2000元的行政处罚，在处罚作出前，应告知王某以下哪些事项( )

A．作出行政处罚决定的事实

B．作出行政处罚决定的理由和依据

C．作出行政处罚决定时上级行政机关的意见

D．王某有要求举行听证的权利