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举一反三
【单选题】We must take part in physical labor in order to ______ ourselves more closely with the working people.
A.
identify
B.
incorporate
C.
combine
D.
involve
【单选题】As we all know, ______ life is hard for any of us. If we want to live ______ happy life, we must work harder. [ ]
A.
不填; 不填
B.
不填; a
C.
a; 不填
D.
a; a
【简答题】计算二重积分xInydxdy，其中D：0≤x≤4，1≤y≤e．
【单选题】Life is more important than the pressures and stresses that we place on ourselves over work and other commitments.
A.
appointments
B.
arrangements
C.
obligations
D.
devotions
【单选题】We’re trying to ring you back, Bryan, but we think we _____ your number incorrectly.
A.
looked up
B.
worked out
C.
took down
D.
brought about
【单选题】We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation langu...
A.
it is used in designing software
B.
it is hardware-independent
C.
is should be translated into the computer language by software
D.
it is designed to solve some specific problem
【单选题】We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation langu...
A.
it is used in designing software.
B.
it is hardware-independent.
C.
is should be translated into the computer language by software.
D.
it is designed to solve some specific problem.
【简答题】计算二重积分 ，其中D＝{(X，y)1 0≤X≤1，0≤y≤1}．
【单选题】So far we have done a lot to build a low-carbon economy, but it is ____ ideal (理想). We have to work still harder.
A.
next to
B.
far from
C.
out of
D.
due to
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