线性尺寸数字一般应注写在尺寸线的____或____。★10、平面图形中所注尺寸按作用分为____和____。
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The word "odds" in "Though the odds are that you'll be unemployed and depressed..." (para.1) means
A. something is likely to happen
B. disagree
C. something that is strange
D. something not happening very often
By saying " The year 2020 is a ripe target for prediction", the author implies that
A. "2020" is a symmetrial round number, which sounds auspicious.
B. "2020" is not far away to be in the "future", yet close to make predictions seem credible.
C. Almost all companies make predictions starting with " By 2020".
D. People make too many predictions about 2020.
True or false: By 2020, automatic cars will gain an increasing popularity.
A. True
B. False
The word "quarters" in the last line of para.3 means
A. 15 minutes
B. three months
C. 25 cents