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【单选题】
下列函数中 既是奇函数,又是单调增加的。A.
sin 3 x
B.
x 3 +1
C.
x 3 +x
D.
x 3 -x
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举一反三
【单选题】The mention of a conflict between people with earpiece thingies and bystanders in the sixth paragraph is to______.
A.
support the author's opinion in the previous part
B.
elicit the author's opinion in the following paragraph
C.
verify the trueness of the author's statement
D.
refute other people's sympathy for the man
【多选题】填方土料应符合的要求有（）。
A.
碎石类土、砂土可作为表层下的填料
B.
含水量符合压实要求的黏性土可作各层填料
C.
淤泥一般不能用作填料
D.
爆破石渣不可作为表层下的填料
E.
含水量符合压实要求的黏性土不可作各层填料
【单选题】Braille, the universally accepted______ of writing used by blind persons, consists of sixty-three characters.
A.
catalog
B.
system
C.
pattern
D.
scheme
【单选题】According to a 1980 survey, ten percent of all United States citizens over the age of six are functionally illiterate. Therefore, if the projection that there will be 250 million United States cit...
A.
The percentage of high school graduates who do not go on to college has grown steadily over the past two decades.
B.
From 1975 to 1980 there was a three-percent decrease in the rate of functional illiteracy among United States citizens over the age of six.
C.
Many United States citizens included in the 1980 survey would also be included in a survey conducted in the year 2000.
D.
Surveys that are improperly designed usually provide inaccurate results.
E.
In 1980 sixty-five percent of all United States citizens were over the age of six.
【单选题】通常人们所说的一个完整的计算机系统应包括（ ）。
A.
主机、键盘、显示器、输入和输出设备
B.
计算机和它的外围设备
C.
系统软件和应用软件
D.
计算机的硬件系统和软件系统
【单选题】对回填土料的选择，()不符合规定。
A.
含水量符合压实要求的黏性土，可用于各层填料
B.
碎块草皮和有机质含量大于8%土，仅用于无压实要求的填方
C.
淤泥和淤泥质土一般不能用作填料
D.
在软土或沼泽地区，可用淤泥质土回填
【单选题】What is indicated about the cabinet manufactured by Acewood?
A.
Woodline Furniture sold six of them on March 21.
B.
It has been unpopular with customers at Woodline Furniture.
C.
Woodline Furniture plans to offer it at a discount in April.
D.
It is available at the same price as a bar stools from Acewood.
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