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【多选题】
俄罗斯第二大城市圣彼得堡的美称是什么?A.
北方首都
B.
北方威尼斯
C.
桥博物馆
D.
凝固的音乐
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举一反三
【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
【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
【判断题】通过克隆的方法将某一基因组DNA或mRNA保存于适当宿主菌中形成的转化子群。所有重组DNA组合代表该基因组的全序列。 根据构建方法只有一种:基因组文库。
A.
正确
B.
错误
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