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【单选题】
“辽宁”号的前身为“瓦”号。“瓦”号总设计师瓦列里·巴比奇于2013年10月24日接受俄罗斯《军工综合体》记者的采访时表示，“辽宁”舰在中国整修和服役后，对其进行了改装和创新，许多方面已超越原有设计，达到所需的技术要求，尤其是锅炉和舰载机远胜过原版，作战性能将更胜一筹。“辽宁”号大放异彩的原因是（） ①在绝对不相容的对立中实现了思维创新 ②在批判性思维的指引下找到了新思路 ③在辩证否定的过程中实现了理念和实践的创新与发展 ④在先否定传统继而创新理念的实践中实现了自身的发展A.
①②
B.
②③
C.
②④
D.
③④
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【单选题】He has some trouble ____ his classmates but he has no trouble ____ doing his lessons. [ ]
A.
with; with
B.
with; in
C.
in; in
D.
in; with
【单选题】―What your English teacher doing now? ―He _____ a newspaper.
A.
is, reading
B.
is, is looking at
C.
does, watching
D.
is… is reading
【简答题】A．He is doing research. B．He works long hours in the lab. C．He is progress. D．He was unhappy until recently.
【单选题】He __________ some cooking at that time, so ___________me.
A.
did, heard
B.
was doing, heard
C.
was doing, didn’t hear
D.
did, didn’t hear
【单选题】He has some trouble ______ his classmates, but he has no trouble ______ doing his lessons.
A.
with; with
B.
in; in
C.
with; in
D.
in; with
【单选题】—What were you doing when she dropped in? —I for a while and_________ some reading.
A.
was playing; was going to do
B.
played; did
C.
had played; was going to do
D.
had played; did
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