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【简答题】
请解释如下句子的意思: The residence concept is a key concept for the measurement of services transactions between residents and non-residents. So, identify the transactions and residence of transactors is the essential principle of such trade.
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【单选题】I was glad to meet Jenny again，________ I didn’t want to spend all day with her. (2013·大纲全国，23)
A.
but
B.
and
C.
so
D.
or
【单选题】I was glad to meet Jerry again, ________ I couldn’t wait to spend all day with her.
A.
but
B.
and
C.
so
D.
or
【单选题】Einstein's connection with the politics of the nuclear bomb is well known: he signed the famous letter to President Franklin Roosevelt that persuaded the United States to take the idea seriously, and ...
A.
Einstein was not isolated in his postwar effort to prevent nuclear war.
B.
Einstein was isolated from other scientists in his political advocacy.
C.
Einstein was more than once connected with the political world.
D.
It was the only action that dragged Einstein into the world of politics.
【单选题】下列有关刚性屋面防水层分格缝的叙述中,正确的是 。
A.
分格缝可以减少刚性防水层的伸缩变形，防止和限制裂缝的产生。
B.
分格缝的设置是为了把大块现浇混凝土分割为小块，简化施工。
C.
刚性防水层与女儿墙之间不应设分格缝，以利于防水。
D.
防水层内的钢筋在分格缝处也应连通，保持防水层的整体性。
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