______ is a sequence of letters and digits, the first character must be a letter.A．An identifierB．A stringC．An arrayD．program
______ is a sequence of letters and digits, the first character must be a letter.
A．An identifier
B．A string
C．An array
D．program
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● (75) is a sequence of letters and digits,the first character mustbe a letter.(75) A．An identifierB．A stringC．An arrayD．program
● (67) is a sequence of letters and digits，the first character must be a letter.(67) A．An identifierB．A stringC．An arrayD．A program
VIP is an acronym, formed by taking the first letters of a series of words and pronounced as a single word.() 此题为判断题(对，错)。
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An identifier is a sequence of letters and digits，the first character must be(60)．A．a letterB．a stringC．an arrayD．a interger
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Which of the following is a characteristic of a sequence?() A.A sequence will never generate duplicate valuesB.The MAXVALUE of a sequence can be equal to the MINVALUEC.It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zeroD.When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
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单选题Which of the following is a characteristic of a sequence?（）AA sequence will never generate duplicate valuesBThe MAXVALUE of a sequence can be equal to the MINVALUECIt is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zeroDWhen a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
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多选题Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）AA must contain all of the characters defined in BBA must be UnicodeCThe encoded values in A must match the encoded values in B for all characters defined in BDA must be a multibyte character setEThe encoded values in A must match the encoded values in B for all numeric and alphabetic character
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