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【单选题】
甲酸(HCOOH)和乙酸(CH 3 COOH)都是弱酸，当它们的浓度均为0.10 mol·L -1 时，甲酸中的c(H + )约为乙酸中的c(H + )的3倍。现有两种浓度不等的甲酸溶液a和b以及0.10 mol·L -1 的乙酸，经测定它们的pH从大到小依次为a、乙酸、b。由此可知 [ ]A.
a的浓度必小于乙酸的浓度
B.
a的浓度必大于乙酸的浓度
C.
b的浓度必小于乙酸的浓度
D.
b的浓度必大于乙酸的浓度
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【单选题】Is there a between learning styles in China and the West?
A.
contrast
B.
principal
C.
priority
D.
performance
【简答题】根据下列选项，回答 81～82 题。 第 81 题 痛经出现腹胀者，宜加用（ ）
【简答题】A．阳陵泉、光明 B．阴陵泉、外关 C．内关、大横 D．天枢、气穴 E．悬钟、内关 痛经出现腹胀者，宜加用( )
【单选题】The true injury rates are obtained from
A.
the average number of injuries for each individual
B.
the amount of exercises for each individual
C.
the numbers of the injured and all individuals in training
D.
the numbers of people doing exercises and those stopped exercises for one week
【单选题】. A little learning is not dangerous so long as you know ________.
A.
that
B.
that there is a little
C.
it is a little
D.
that it is little
【单选题】听力原文： Robert recently attended a lecture on safety at a neighborhood center. The speaker was Detective Garcia of the New York Police Department. Here is what he said: The first thing you need to do is...
A.
A detective from the Los Angeles Police Department.
B.
Detective Garcia from the New York Police Department.
C.
Someone who lives in the neighborhood.
D.
Robert's neighbor.
【简答题】根据下列选项，回答 105～106 题： 第 105 题 痛经出现腹胀者，宜加用（ ）
【单选题】In the first two lines of the poem “The Soul selects her own Society”(409), the speaker describes the Soul shutting a door. What does the image of the Soul suggest metaphorically?
A.
An image of the individual deliberately getting herself away from all her social promises.
B.
An image of the individual deliberately closing herself away to pursue some greater purpose.
C.
An image of the individual deliberately plunging herself into poetry writing.
D.
An image of the individual deliberately closing hereself off from society and doing nothing at all.
【简答题】What do we know from the conversation? A. The speake rs will go to London by air. B . The company's car is probably over five meters long. C . The woman's car is longer than the man's.
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