沥青混合料的拌和时间越长,混合料的均匀性越好。()
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有下列程序: #include<iostream> Using namespace std; Class Amount{ int amount; public; Amount(int n=O):amount(n){} Int getAmount()const{return amount;} Amount &operator+=(AmountA) {
A. *this
B. this
C. &amount
D. amount
The book mentioned in this passage is written for readers who ______.
A. long for a deeper understanding of science
B. are good at producing various gadgets
C. work in a storehouse of dried facts
D. are interested in popular science
听力原文:M: Hi, Mary, you're back! How was New York?
W: Great! Have you ever been there?
M: No.
W: I think it's probably my favorite city.
M: Really? What's so great about it? I heard it was quite dirty.
W: In some parts, maybe. But there's just so much going on, the theaters, restaurants, shops and museums. They make London and Paris like country towns. The only problem was the weather. It was freezing.
M: What a shame !
Where did Mary go?
A. New York.
B. London.
C. Paris.
听力原文:W: How long does it take to get to the museum?
M: Well, that all depends on the traffic, but it shouldn't take more than twenty minutes for the average driver. And I'm not average.
Q: What does the man mean?
(9)
A. He can drive there in less than 20 minutes.
B. The traffic is very heavy at this time of the day.
C. The museum is not open today.
D. The woman should ask another driver for help.