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语法填空 Have a look at a keyboard — either on your computer or on your cellphone — and you'll notice that it isn't set up alphabetically (按字母顺序地).1.________(start) in the upper left corner, you won't see ABCDEF. Instead, you'll see QWERTY. What's up 2.________ that? Is it an accident? The answer is no! Actually, it was planned that way. In the 1860s, American 3.________ (invent)Christopher Sholes began working on the typewriter.In 1873, he designed 4.________ first typewriter,called the Remington Number 1. The keys on early typewriters 5.________ (arrange) in alphabetic order,but unfortunately, they jammed easily. 6.________ (settle) the problem, Sholes decided to redesign the keyboard so that the most commonly used 7.________ (letter) would be as far apart as possible on the keyboard. He believed that in this way,the jamming problem could be 8.________ (successful) avoided. In 1873, Sholes produced the QWERTY keyboard, 9.________ quickly became the universal standard. Although several alternative keyboards were designed in the following decades,none of 10.________ (they) design proved to be better than the QWERTY layout (安排). Therefore,QWERTY continued to be—and still is—the universal standard keyboard layout.
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错误
【单选题】单调谐放大器的通频带取决于回路的()。
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谐振频率和空载品质因数
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微粉硅胶
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聚乙二醇
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硬脂酸镁
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【判断题】艾宾浩斯遗忘曲线说明遗忘进程是先慢后快。
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正确
B.
错误
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【单选题】常用于粉末直接压片的助流剂是( )
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微粉硅胶
B.
滑石粉
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十二烷基硫酸钠
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硬脂酸镁
【单选题】常用于粉末直接压片的助流剂是
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微粉硅胶
B.
滑石粉
C.
聚乙二醇
D.
硬脂酸镁
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