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【单选题】
下列各组代数式中,为同类项的是
A.
5x 2 y与-2xy 2
B.
4x与4x 2
C.
-3xy与
D.
6x 3 y 4 与-6x 3 z 4
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举一反三
【单选题】From this passage, we learn that people______.
A.
spent more money than they earned
B.
saved more money than previously
C.
invested and consumed at an accelerated pace
D.
spent their money wisely
【单选题】听力原文:M Here is the finance report you requested. Overall, we spent 7% more than last quarter. Fortunately, the increase in revenue made up for it. W That's good. We've done really well so far this yea...
A.
The increase in expenses
B.
The decrease in revenue
C.
This quarter's slow sales
D.
A rival company's performance
【单选题】实体填充区域不能表示为以下哪项?
A.
图案填充(使用实体填充图案)
B.
三维实体
C.
渐变填充
D.
宽多段线或圆环
【单选题】Guilin is famous its beautiful scenery.
A.
as
B.
for
C.
because
D.
to
【单选题】在下列叙述中,正确的一条是 。
A.
分时系统中,时间片越小,响应时间越长
B.
多道程序的引入,主要是为了提高CPU及其它资源的利用率
C.
飞机票计票系统是分时系统
D.
PCB 是进程存在的唯一标志,而程序是系统感知进程存在的唯一实体
【单选题】下列叙述中,正确的一条是()。
A.
分时系统中,时间片越小,响应时间越长
B.
多道程序的引入,主要是为了提高 CPU及其它资源的利用率
C.
飞机票机票系统是分时系统
D.
PCB是进程存在的唯一标志,而程序是系统感知进程存在的唯一实体
【单选题】Guilin is famous ____ its beautiful hills and rivers, while Kunming is famous ____ the Spring City.
A.
for; for
B.
as; as
C.
as; for
D.
for; as
【单选题】Guilin is famous its beattiful scenery.
A.
of
B.
for
C.
as
D.
from
【单选题】Though we spent a lot, we think it _____ because we succeeded in the end.
A.
worth
B.
worth being spent
C.
worthy of
D.
worthwhile
【单选题】在下列叙述中,正确的是( )。
A.
分时系统中,时间片越小,响应时间越长
B.
多道程序的引入,主要是为了提高CPU及其它资源的利用率
C.
飞机票订票系统是分时系统
D.
PCB是进程存在的唯一标识,而程序是系统感知进程存在的唯一实体
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