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【简答题】
阅读理解。 There has been a new trend in food recently-people are becoming not interested in fast food and beginning taking an interest in eating 'slow food'. For many years, the pace of life has been increasing for most people. Buying, preparing and cleaning up after a meal was becoming a big trouble for those busy people. Luckily , there were smart business people who took the opportunity to provide 'instant' solutions to the problem. They opened fast food restaurants. Almost overnight, you could go to the fast food restaurant, order your food and within 2 minutes it will be handed over to your hands. The problem is health. Fast food has much oil, salt and more calories and far fewer vitamins than food freshly cooked at home. And so , since people have always wanted to live longer and healthier, a small but growing population is choosing not only fresh food, but also organic food (有机食品) —food that hasn't been grown with chemical fertilizers (化学肥料). Another reason for changes in eating habits is the society. Over the centuries,meal times have been used to visit, laugh and learn. That doesn't fit with today's busy life and many people are looking for ways to restore (恢复) that. Goodbye McDonald's. Finally, there's something special about planning your meal, buying just the right ingredient (配料) and seeing something on your table that looks just like the picture inyour recipe book (食谱书). So if you're too busy, maybe it's time for you to slow down and enjoy ameal with a friend. 1. 判断正误('T'表示正确,'F'表示错误)。 (     ) People are becoming interested in eating 'slow food'. 2. Why is fast food not healthy? ______________________________________________________________ 3. What's organic food? ______________________________________________________________ 4. 完成句子。 Busy people find it a big trouble to _________________________. 5. 将文中画线句子译成汉语。 ______________________________________________________________
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【单选题】This is a picture _______ Qi Baishi.
A.
in
B.
by
C.
at
【单选题】Qi Baishi was a famous artist in our country. He __________ 1864.
A.
born in
B.
was born in
C.
is born on D  was in
【单选题】【2020数一】设X1,X2,......,Xn为来自总体X的简单随机样本,P(X=0)=P(X=1)=1/2, Φ(x) 为标准正态分布的分布函数,利用中心极限定理,可得P(X1+X2+......+X100 ≤ 55)的近似值为 注:X1,X2,......,Xn的1,2,......,n均为下标,X1+X2+......+X100的1,2,......,100也均为下标
A.
Φ(1)
B.
1- Φ(1)
C.
Φ(0.5)
D.
1- Φ(0.5)
【单选题】美国专利数据库USPTO在( )范围内可以使用。
A.
互联网
B.
只有在校园网IP地址范围内才行
【判断题】Qi Baishi was a writer.
A.
正确
B.
错误
【单选题】设随机变量X 1 ,X 2 ,... , X n ,...相互独立,则根据辛钦大数定律,当n充分大时, 依概率收敛于其共同的数学期望,只要X 1, X 2 , ... , X n , ... ( )
A.
有相同的数学期望
B.
服从同一分布
C.
服从同一连续性分布
D.
服从同一Poisson分布
【单选题】Qi Baishi's style of painting often leaves the audience _______ and makes them use their imagination. [     ]
A.
guess
B.
guessing
C.
guessed
D.
to guess
【单选题】设X 1 ,X 2 ...,Xn是来自总体的简单随机样本,则X 1 ,X 2 ,...,X n 必然满足()
A.
独立但分布不同
B.
分布相同但不相互独立
C.
独立同分布
D.
不能确定
【简答题】E-mail 地址由 和 两部分组成。
【单选题】On the wall _____, which was painted by Qi Baishi.
A.
does a painting hang
B.
hangs a painting
C.
a painting does hang
D.
is a painting hanging
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