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C In the mid 1990’s, people started doing business on the Internet. At that time, there were two kinds of companies. First, there were traditional companies. They sold things in stores. Then there were Internet companies. They didn’t have a store, and they only sold things on the Net. Traditional companies didn’t want to lose any business. Quickly they made their own websites and began selling things on the Net. These are the so-called “brick and click” companies. Many stores are made of brick. And you click on your mouse to buy things with your computer. That’s where the name “brick and click” comes from. By the late 1990’s, e-business like amazon.com, buy.com and etoys.com were in trouble. Their profits(利润) were not very high. Competition was great. Many of these business were losing lots of money. In 2000, many e-business went out of business. Why are “brick and click” companies, like Barnes and Noble, Toys RVs and Walmart so successful? First, many customers know and trust their names. Their websites like walmart.com. are easy to remember. These companies also have lots of experience. They know how to run a successful business. In the world of e-commerce, companies are fighting for every dollar and every customer. Will “brick and click” companies win the war? Only time will tell. 64 . Which of the following would be a “brick and click” company? A. A restaurant. B. A clothing company with no website. C. A bookseller with five stores and a website. D. A video seller with a big website but no stores. 65  What did many traditional companies do in the mid 1990’s?                . A .They went out of business.              B. They made their websites. C. They bought Internet companies.         D. They sold their companies. 66  What gave Internet companies lots of trouble in the late 1990’s?. A. Heavy competition                  B. They were short of money. C. They didn’t know what to do.          D. people didn’t believe in them. 67 . “Brick and click” companies are so successful because______. A. people trust them                  B. their names are easy to remember C. they are experienced               D. all the above 68 . Which of the following is TRUE according to the passage? A. All the “brick and click” companies run a successful business. B. “Brick and click” companies are certain to win the business competition. C. It is uncertain whether “brick and click” companies will win the competition. D. Both “brick and click” companies and Internet companies will be successful in the future.
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【简答题】已知物体的运动规律为s=t 3 (m),求这物体在t=2s时的速度.
【单选题】有关环糊精的叙述哪项是错误的
A.
环糊精是环糊精葡聚糖转位酶作用于淀粉后形成的产物
B.
是水溶性、还原性的白色结晶性粉末
C.
是由6~10个葡萄糖分子连接而成的环状低聚糖化合物
D.
其立体结构是中空圆筒形
E.
其中以B-环糊精的溶解度最小
【单选题】关于输精管梗阻,以下哪项是错误的?
A.
导致无精子症
B.
睾丸内生精小管结构正常
C.
炎症可以导致输精管梗阻
D.
药物治疗效果不佳
E.
常伴有抗精子抗体的产生
【判断题】三栏式或多栏式现金日记账,可以使用活页账。
A.
正确
B.
错误
【单选题】关于精子的结构哪项是错误的
A.
顶体为增厚的细胞膜
B.
头部为浓缩的细胞核
C.
中段含线粒体
D.
主段有纤维鞘
E.
末段仅有轴丝
【简答题】已知物体的运动规律为s=t 3 m,求这物体在t=2s时的速度.
【判断题】三栏式或多栏式现金日记账,可以使用活页账。
A.
正确
B.
错误
【判断题】已知物体的运动规律为s=2t+t2 (米),则物体在t=2秒时的瞬时速度为6m/s。()
A.
正确
B.
错误
【单选题】关于精子的结构哪项是错误的 ( )
A.
头部主要含有一浓缩的细胞核和顶体
B.
顶体内含有水解酶
C.
主段有轴丝和线粒体鞘
D.
中段有轴丝和线粒体鞘
【多选题】课程与教学目标确定的依据主要包括( )。
A.
对教育目的的正确解读
B.
对家长要求的及时回应
C.
对学生背景的充分了解
D.
对课程内容的准确分析
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