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【判断题】
影响塑件尺寸精度的因素十分复杂,首先是模具制造的精度和塑料收缩率的波动,其次是模具的磨损程度,另外,在成型时工艺条件的变化、塑件成型后的时效变化、塑件的飞边等都会影响塑件的精度。A.
正确
B.
错误
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【单选题】The English are proud of the 30th Olympic Games _____ in London in 2012. [ ]
A.
hold
B.
being held
C.
held
D.
to be held
【单选题】By saying 'You' re a lucky dog. ' the speaker______.
A.
is just being friendly
B.
expresses the same meaning as 'You' re a lucky guy. ' or 'You' re a lucky gal.
C.
is humorous to apply the word 'dog' to people
D.
has a hidden jealous feeling behind the words
【简答题】脑血管病的危险因素可以改变的包括哪些?
【单选题】The Chinese are proud of the 29th Olympic Games _____ in Beijing in 2008.
A.
hold
B.
being held
C.
held
D.
to be held
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