下列药物，可减少呋塞米经肾小管排泄进入肾小管管腔为（） A.氯化钙 B.丙磺舒 C.

最大发射功率40W的基站相对于最大发射功率20W的基站而言，前向语音用户容量显著提高。（）

()是一种以书面形式了解被调查对象的反应和看法，并以此获得资料和信息的载体。

A．问卷

B．深度访谈

C．抽样

D．实验控制

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

由商品的价格变动所引起的商品相对价格的变动．进而由商品的相对价格变动所引起的商品需求量的变动，称为( )。

A．挤出效应
B．替代效应
C．收入效应
D．外部效应