皮皮学，免费搜题
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【单选题】
促进黏液分泌及胃黏膜细胞更新A.
硫糖铝
B.
西咪替丁
C.
奥美拉唑
D.
吗丁啉
E.
前列腺素E2
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皮皮学刷刷变学霸
举一反三
【单选题】If the leftmost bit in ( ) number representation is 0, then the decimal number is positive.
A.
two's complement
B.
floating point
C.
excess system
D.
both a and b
【判断题】The first set of a sequence of symbols α , written as First( α) , is the set of terminals which start all the sequences of symbols derivable from α . A bit more formally, consider all strings derivabl...
A.
正确
B.
错误
【单选题】If the leftmost bit in __________ number representation is 0, then the decimal number is positive integers.
A.
two's complement
B.
floating point
C.
excess system
D.
both a and b
【简答题】将两个变极距式电容式传感器接成差动形式，其灵敏度将（ ）（填写增大或减小）2倍。
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