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问题
单项选择题
铝材质的零件允许最高温度为()
A、80°
B、90°
C、95°
D、125°
答案
参考答案:A
选择题
If Mrs. Brown _____ more exercise, she will be better soon.
A. take
B. took
C. takes
D. is taking
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问答题 简答题
奔驰、宝马轿车加不到97#车用无铅汽油时,能否加90#车用无铅汽油?
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