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【单选题】
在实际操作中,应当详细了解室内每一功能房间空气中可能存在的( )。A.
污染物的名称和浓度
B.
细菌的个数
C.
甲醛的浓度
D.
二氧化硫的浓度
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反馈参考答案：
举一反三
【单选题】根据以下材料，回答题 Stanford University （1） Stanford University， famous as one of northern California's several institutions of higher learning， is sometimes called 'the Harvard of the West'. The closeness of ...
A.
Colorful life on campus
B.
Intelligent student body
C.
School administration
D.
Distinguished faculty
E.
Substantial financial support
F.
The Harvard of the west
【单选题】Stanford University was founded by Leland Stanford in 1884, _______________ his son who had died before.
A.
in spite of
B.
in case of
C.
in memory of
D.
in search of
【单选题】听力原文：M: Excuse me, cart you tell me where the bookstore is? W: Yes. They are just down this street on the left side. Q: What does the man want to do? (3)
A.
Make a call.
B.
Have a rest.
C.
Buy a book.
D.
Look for something.
【简答题】Stanford University 1. Stanford University is sometimes called 'the Harvard of the West.' The closeness of Stanford to San Francisco, a city thirty-two miles to the north, gives the university a decid...
【简答题】弹簧S1 的上端固定在天花板上,下端连一小球A ,球A 与球B 之间用线相连, . 球B 与球C 之间用弹簧S2 相连,A 、B 、C 的质量分别为ma 、mb 、mc ,弹簧与线的质量均可不计。开始时它们都处在静止状态,现将A 、B 间的线突然剪断,则线刚剪断时A 、B 、C 的加速度分别为 ____ ; ____ ; ____ 。
【单选题】听力原文：W：I need a cart his weekend, but mine has broken down in an accident when I drove to work yesterday morning. M：I'm sorry to hear that, but you can always rent one if you have a license. Q：What do...
A.
She can use his car.
B.
She can borrow someone else's car.
C.
She must get her car fixed.
D.
She can't borrow his car.
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