[单项选择]My brother changed his major at college several times and he never ______ any one very long.
A. stuck to
B. kept back
C. let alone
D. made way

[单项选择]My brother changed his major at college several times and he never ______ any one very long.
A. stuck to
B. kept back
C. let alone
D. made way

[单项选择]The operating system has several major components，including the (64) ，a memory management system，the file system manager，device drivers，and the system libraries．
A. application kernel
B. information kernel
C. network kernel
D. system kernel

[单项选择]The（）has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.
A. application
B. information system
C. operating system
D. information processing

[单项选择]The (75) has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.
A. application
B. information system
C. network
D. operating system

[单项选择]The (74) has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.
A. application
B. information system
C. network
D. operating system

[单项选择]Several major criminals ______ from the guards and escaped from the jail.
A. broke through
B. broke out
C. broke up
D. broke away

[单项选择]Overall, there are several major issues _________ us on the media front right now.


A. confining
B. confirming
C. conforming
D. confronting

[单项选择]The college offers several courses designed to further the career ______ of its students.


A. apprehensions
B. aspirations
C. applications
D. registrations

[单项选择]At several points in his discussion, David Smith, in effect,______ evidence when it does not support his argument, tailoring it to his needs.


A. deviates
B. creates
C. alters
D. adjusts

[单项选择]A university is usually made up of several colleges, and each college is made up of several ______ departments.


A. related
B. joined
C. combined
D. mixed

[单项选择]What was his original goal at college


A. To teach in high school.
B. To write his own books.
C. To be a medical doctor.
D. To be a mathematician.

[单项选择]

Black death that drove Newton from his college and into a momentous discovery, (1) England in 1665. Astronomical records of the time show that (2) was a year of intense sun-spot activity, and studies of annual tree (3) , which are wider when the sun is disturbed (4) that the terrible plague of 1348 was (5) accompanied by an active sun.
This sounds incredible, (6) we now have evidence that the sun has a direct effect on some of our body (7) . Over 120 ,000 tests made on people in a Black Sea (8) to measure the number of lymphocytes in their blood. These small cells normally (9) between 20 and 25 percent of man’s white blood cells, but in years of great solar activity this (10) decreases. There was a biff drop during the sunspot years of 1986 and 1987, and number of people (11) from diseases caused by a lymphocyte deficiency (12) doubled during the tremendous solar explosion of Februa
A. times above
B. time
C. times in
D. times