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【简答题】
某企业近年来产量逐年增长,1999年比1998年增长了8%,2000年比1999年增长了10%, 2001 年比2000年增长了13%,2002年比2001年增长了16%。试求:(10分) (1)1998 年与2002年对比,产量的总发展速度。 (2) 年平均发展速度和年平均增长速度。
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举一反三
【单选题】Air pollution, together with overpopulation, ______ many problems in big cities today.
A.
are causing -
B.
is causing
C.
are caused
D.
is caused
【单选题】What is the passage mainly about?
A.
How to fight air pollution in big cities.
B.
How to avoid air pollution in big cities.
C.
How to breathe fresh air in big cities.
D.
How serious air pollution is in big cities.
【单选题】What are highly esteemed in big cities?
A.
Living conditions.
B.
Sunshine and fresh air.
C.
Air-conditioned houses.
D.
A few flowers and a few leaves.
【简答题】桩基础 按成桩方法不同,桩基础可分为 和 两类。 沉入的方法有 、 、 等; 灌注桩施工因成孔机械不同,常用的方法有正循环回转法、反循环回转法等。
【简答题】At the big news, _____________________. A tears came out of his eyes B the boy jumping into air C he was first frozen and then jumped into air D tears blinded his eyes completely
【单选题】Most flights of Heaven Air go to ______.
A.
small towns
B.
big cities
C.
both big and small cities
D.
the very center of Africa
【单选题】Most flights of Heaven Air go to ______.
A.
big cities
B.
small towns
C.
both big and small cities
D.
the very center of Asia
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