[单项选择]______ popularity of subject matter and frequency of use, the books on the two middle shelves will be the most helpful to you.
A. As of
B. As regards
C. As from
D. As against

[单项选择]______popularity of subject matter and frequency of use, the books on the two middle shelves will be the most helpful to you.
A. As of
B. As regards
C. As from
D. As against

[单项选择]The subject matter of Sunday's Children
A. is presented chronologically.
B. takes place in the 19th century.
C. occurs all in one locale.
D. is derived from reminiscences.

[单项选择]What subject matter did Monet and Siley usually paint
A. Country scenes.
B. Portraits.
C. Skyscrapers.
D. Animals in nature.

[单项选择]The subject matter was so technical as to be beyond the ______ of the average layman. A. sphere B, realm C. ken D. kingdom

[单项选择]In addition to (appropriating) the (subject matter) of mass culture, the pop art movement of the 1950's (utilized) various (technique) of mass production.
A. appropriating
B. subject matter
C. utilized
D. technique

[单项选择]The subject matter of the second paragraph is ______.

[单项选择]FREQUENCY:
A. (A) perseverance
B. (B) accord
C. (C) steadiness
D. (D) restraint
E. (E) uncommonness

[单项选择]Boarding schools are losing their popularity among pupils because ______.

[简答题]What is nominal central frequency?

[单项选择]

Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada.   
Arthur von Wiesenberger, who carries the title Water Master, is one of the few water critics in North America. As a boy, he spent time in the larger cities of Italy, France and Switzerland, where bottled water is consumed daily. Even then, he kept a water journal, noting the brands he liked best. “My dog could tell the difference between bottled and tap water,” He says.   
But is plain tap water all that bad Not at all. In fact, New York’s municipal water for more than a century was called the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity. Similarly, a magazine in England found that tap water from the Thames River tasted better than several leading brands of bottled water that were 400 times more expensive.&
A. It is a kind of iced water.
B. It is just plain tap water.
C. It is a kind of bottled water.
D. It is a kind of mineral water.