一副牌Deck有52张扑克Card组成(不含王牌)，每张牌有自己的牌型suit（用char类型）和点数rank（用String类型），补充完整下面的类的定义。public class Card {//1//2public Card( ) {//3this.suit = suit; this.rank = rank;}public String toString() { return suit+rank; }public static void main(String[] args){Card c=new Card('红',"10");System.out.println(c);}}

Is“Tang suit” the suit that people in Tang Dynasty wore?

‎If A and B are m × n matrices then have the same rank, then the rank of AB must equal the rank of BA.‌‎‌

Chinese Tunic Suit, or Zhongshan Zhuang, also called the Yat-sen Suit, is designed by Dr. Sun Yat-sen by combining the western-style suit and Chinese attire.

For business formal, women might wear a dark pants suit, skirt suit or suit dress. In some cases, a long evening dress may be appropriate.

For men, business professional means a business suit or pants suit, or an appropriate dress and jacket. For women, professional dress means a business suit or a blazer, dress pants and a tie.

以下语句错误的是() A: LECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank; B: SELECT rank, AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000 C: SELECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank; D: SELECT AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000; E: SELECT rank, AVG(salary) FROM people GROUP BY rank WHERE AVG(salary) > 1000;

char[] suit={(char)3, (char)4, (char)5, (char)6};可以换成以下那句 A: char[] suit={3, 4, 5, 6}; B: char[] suit={‘3’, ‘4’, ‘5’, ‘6’}; C: char[] suit={"3", "4", "5", "6"}; D: char[] suit={3.ToString(), 4.ToString(), 5.ToString(), 6.ToString()};

Let A be an m×n matrix, then ( ). A: AAT =ATA. B: if rank(A) = m, then AT A is invertible. C: if rank(A) = n, then AAT is invertible. D: if rank(A) = n, then AT A is invertible.

中国大学MOOC: Wearing in a suit and tie or skirt suit and heels might be informal for leisure wear.