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【单选题】
按照TRIZ理论对创新的分级,“内燃机 、 集成电路"属于A.
1 级﹕显然的解
B.
4 级﹕全新的概念
C.
3 级﹕根本性的改进
D.
2 级﹕少量的改进
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举一反三
【单选题】It can be inferred from the passage that the sun ______ .
A.
is approximately halfway through its life as a yellow dwarf
B.
has been in existence for 10 billion years
C.
is rapidly changing in size and brightness
D.
will continue as a yellow dwarf for another 10 billion years
【简答题】直流电动机的主磁极主要由 和 组成。
【单选题】听力原文：A: After the way it is being used, the photocopier is not going to make it through the rest of the year. B: The year! It's supposed to be good for four! The tone of the man is that of______.
A.
surprise.
B.
sarcasm.
C.
disappointment.
D.
humour.
【简答题】直流电动机的主磁极是由（）和励磁绕组组成。
【简答题】The Confucius Institutes aim at promoting the Chinese language and culture overseas through Internet or ___________ courses.
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